diff --git a/Objects/stringlib/split.h b/Objects/stringlib/split.h
index 00b29b31d09..60e77674f07 100644
--- a/Objects/stringlib/split.h
+++ b/Objects/stringlib/split.h
@@ -392,397 +392,3 @@ stringlib_splitlines(PyObject* str_obj,
 }
 
 #endif
-/* stringlib: split implementation */
-
-#ifndef STRINGLIB_SPLIT_H
-#define STRINGLIB_SPLIT_H
-
-#ifndef STRINGLIB_FASTSEARCH_H
-#error must include "stringlib/fastsearch.h" before including this module
-#endif
-
-/* Overallocate the initial list to reduce the number of reallocs for small
-   split sizes.  Eg, "A A A A A A A A A A".split() (10 elements) has three
-   resizes, to sizes 4, 8, then 16.  Most observed string splits are for human
-   text (roughly 11 words per line) and field delimited data (usually 1-10
-   fields).  For large strings the split algorithms are bandwidth limited
-   so increasing the preallocation likely will not improve things.*/
-
-#define MAX_PREALLOC 12
-
-/* 5 splits gives 6 elements */
-#define PREALLOC_SIZE(maxsplit) \
-    (maxsplit >= MAX_PREALLOC ? MAX_PREALLOC : maxsplit+1)
-
-#define SPLIT_APPEND(data, left, right)         \
-    sub = STRINGLIB_NEW((data) + (left),        \
-                        (right) - (left));      \
-    if (sub == NULL)                            \
-        goto onError;                           \
-    if (PyList_Append(list, sub)) {             \
-        Py_DECREF(sub);                         \
-        goto onError;                           \
-    }                                           \
-    else                                        \
-        Py_DECREF(sub);
-
-#define SPLIT_ADD(data, left, right) {          \
-    sub = STRINGLIB_NEW((data) + (left),        \
-                        (right) - (left));      \
-    if (sub == NULL)                            \
-        goto onError;                           \
-    if (count < MAX_PREALLOC) {                 \
-        PyList_SET_ITEM(list, count, sub);      \
-    } else {                                    \
-        if (PyList_Append(list, sub)) {         \
-            Py_DECREF(sub);                     \
-            goto onError;                       \
-        }                                       \
-        else                                    \
-            Py_DECREF(sub);                     \
-    }                                           \
-    count++; }
-
-
-/* Always force the list to the expected size. */
-#define FIX_PREALLOC_SIZE(list) Py_SIZE(list) = count
-
-Py_LOCAL_INLINE(PyObject *)
-stringlib_split_whitespace(PyObject* str_obj,
-                           const STRINGLIB_CHAR* str, Py_ssize_t str_len,
-                           Py_ssize_t maxcount)
-{
-    Py_ssize_t i, j, count=0;
-    PyObject *list = PyList_New(PREALLOC_SIZE(maxcount));
-    PyObject *sub;
-
-    if (list == NULL)
-        return NULL;
-
-    i = j = 0;
-    while (maxcount-- > 0) {
-        while (i < str_len && STRINGLIB_ISSPACE(str[i]))
-            i++;
-        if (i == str_len) break;
-        j = i; i++;
-        while (i < str_len && !STRINGLIB_ISSPACE(str[i]))
-            i++;
-#ifndef STRINGLIB_MUTABLE
-        if (j == 0 && i == str_len && STRINGLIB_CHECK_EXACT(str_obj)) {
-            /* No whitespace in str_obj, so just use it as list[0] */
-            Py_INCREF(str_obj);
-            PyList_SET_ITEM(list, 0, (PyObject *)str_obj);
-            count++;
-            break;
-        }
-#endif
-        SPLIT_ADD(str, j, i);
-    }
-
-    if (i < str_len) {
-        /* Only occurs when maxcount was reached */
-        /* Skip any remaining whitespace and copy to end of string */
-        while (i < str_len && STRINGLIB_ISSPACE(str[i]))
-            i++;
-        if (i != str_len)
-            SPLIT_ADD(str, i, str_len);
-    }
-    FIX_PREALLOC_SIZE(list);
-    return list;
-
-  onError:
-    Py_DECREF(list);
-    return NULL;
-}
-
-Py_LOCAL_INLINE(PyObject *)
-stringlib_split_char(PyObject* str_obj,
-                     const STRINGLIB_CHAR* str, Py_ssize_t str_len,
-                     const STRINGLIB_CHAR ch,
-                     Py_ssize_t maxcount)
-{
-    Py_ssize_t i, j, count=0;
-    PyObject *list = PyList_New(PREALLOC_SIZE(maxcount));
-    PyObject *sub;
-
-    if (list == NULL)
-        return NULL;
-
-    i = j = 0;
-    while ((j < str_len) && (maxcount-- > 0)) {
-        for(; j < str_len; j++) {
-            /* I found that using memchr makes no difference */
-            if (str[j] == ch) {
-                SPLIT_ADD(str, i, j);
-                i = j = j + 1;
-                break;
-            }
-        }
-    }
-#ifndef STRINGLIB_MUTABLE
-    if (count == 0 && STRINGLIB_CHECK_EXACT(str_obj)) {
-        /* ch not in str_obj, so just use str_obj as list[0] */
-        Py_INCREF(str_obj);
-        PyList_SET_ITEM(list, 0, (PyObject *)str_obj);
-        count++;
-    } else
-#endif
-    if (i <= str_len) {
-        SPLIT_ADD(str, i, str_len);
-    }
-    FIX_PREALLOC_SIZE(list);
-    return list;
-
-  onError:
-    Py_DECREF(list);
-    return NULL;
-}
-
-Py_LOCAL_INLINE(PyObject *)
-stringlib_split(PyObject* str_obj,
-                const STRINGLIB_CHAR* str, Py_ssize_t str_len,
-                const STRINGLIB_CHAR* sep, Py_ssize_t sep_len,
-                Py_ssize_t maxcount)
-{
-    Py_ssize_t i, j, pos, count=0;
-    PyObject *list, *sub;
-
-    if (sep_len == 0) {
-        PyErr_SetString(PyExc_ValueError, "empty separator");
-        return NULL;
-    }
-    else if (sep_len == 1)
-        return stringlib_split_char(str_obj, str, str_len, sep[0], maxcount);
-
-    list = PyList_New(PREALLOC_SIZE(maxcount));
-    if (list == NULL)
-        return NULL;
-
-    i = j = 0;
-    while (maxcount-- > 0) {
-        pos = fastsearch(str+i, str_len-i, sep, sep_len, -1, FAST_SEARCH);
-        if (pos < 0)
-            break;
-        j = i + pos;
-        SPLIT_ADD(str, i, j);
-        i = j + sep_len;
-    }
-#ifndef STRINGLIB_MUTABLE
-    if (count == 0 && STRINGLIB_CHECK_EXACT(str_obj)) {
-        /* No match in str_obj, so just use it as list[0] */
-        Py_INCREF(str_obj);
-        PyList_SET_ITEM(list, 0, (PyObject *)str_obj);
-        count++;
-    } else
-#endif
-    {
-        SPLIT_ADD(str, i, str_len);
-    }
-    FIX_PREALLOC_SIZE(list);
-    return list;
-
-  onError:
-    Py_DECREF(list);
-    return NULL;
-}
-
-Py_LOCAL_INLINE(PyObject *)
-stringlib_rsplit_whitespace(PyObject* str_obj,
-                            const STRINGLIB_CHAR* str, Py_ssize_t str_len,
-                            Py_ssize_t maxcount)
-{
-    Py_ssize_t i, j, count=0;
-    PyObject *list = PyList_New(PREALLOC_SIZE(maxcount));
-    PyObject *sub;
-
-    if (list == NULL)
-        return NULL;
-
-    i = j = str_len - 1;
-    while (maxcount-- > 0) {
-        while (i >= 0 && STRINGLIB_ISSPACE(str[i]))
-            i--;
-        if (i < 0) break;
-        j = i; i--;
-        while (i >= 0 && !STRINGLIB_ISSPACE(str[i]))
-            i--;
-#ifndef STRINGLIB_MUTABLE
-        if (j == str_len - 1 && i < 0 && STRINGLIB_CHECK_EXACT(str_obj)) {
-            /* No whitespace in str_obj, so just use it as list[0] */
-            Py_INCREF(str_obj);
-            PyList_SET_ITEM(list, 0, (PyObject *)str_obj);
-            count++;
-            break;
-        }
-#endif
-        SPLIT_ADD(str, i + 1, j + 1);
-    }
-
-    if (i >= 0) {
-        /* Only occurs when maxcount was reached */
-        /* Skip any remaining whitespace and copy to beginning of string */
-        while (i >= 0 && STRINGLIB_ISSPACE(str[i]))
-            i--;
-        if (i >= 0)
-            SPLIT_ADD(str, 0, i + 1);
-    }
-    FIX_PREALLOC_SIZE(list);
-    if (PyList_Reverse(list) < 0)
-        goto onError;
-    return list;
-
-  onError:
-    Py_DECREF(list);
-    return NULL;
-}
-
-Py_LOCAL_INLINE(PyObject *)
-stringlib_rsplit_char(PyObject* str_obj,
-                      const STRINGLIB_CHAR* str, Py_ssize_t str_len,
-                      const STRINGLIB_CHAR ch,
-                      Py_ssize_t maxcount)
-{
-    Py_ssize_t i, j, count=0;
-    PyObject *list = PyList_New(PREALLOC_SIZE(maxcount));
-    PyObject *sub;
-
-    if (list == NULL)
-        return NULL;
-
-    i = j = str_len - 1;
-    while ((i >= 0) && (maxcount-- > 0)) {
-        for(; i >= 0; i--) {
-            if (str[i] == ch) {
-                SPLIT_ADD(str, i + 1, j + 1);
-                j = i = i - 1;
-                break;
-            }
-        }
-    }
-#ifndef STRINGLIB_MUTABLE
-    if (count == 0 && STRINGLIB_CHECK_EXACT(str_obj)) {
-        /* ch not in str_obj, so just use str_obj as list[0] */
-        Py_INCREF(str_obj);
-        PyList_SET_ITEM(list, 0, (PyObject *)str_obj);
-        count++;
-    } else
-#endif
-    if (j >= -1) {
-        SPLIT_ADD(str, 0, j + 1);
-    }
-    FIX_PREALLOC_SIZE(list);
-    if (PyList_Reverse(list) < 0)
-        goto onError;
-    return list;
-
-  onError:
-    Py_DECREF(list);
-    return NULL;
-}
-
-Py_LOCAL_INLINE(PyObject *)
-stringlib_rsplit(PyObject* str_obj,
-                 const STRINGLIB_CHAR* str, Py_ssize_t str_len,
-                 const STRINGLIB_CHAR* sep, Py_ssize_t sep_len,
-                 Py_ssize_t maxcount)
-{
-    Py_ssize_t j, pos, count=0;
-    PyObject *list, *sub;
-
-    if (sep_len == 0) {
-        PyErr_SetString(PyExc_ValueError, "empty separator");
-        return NULL;
-    }
-    else if (sep_len == 1)
-        return stringlib_rsplit_char(str_obj, str, str_len, sep[0], maxcount);
-
-    list = PyList_New(PREALLOC_SIZE(maxcount));
-    if (list == NULL)
-        return NULL;
-
-    j = str_len;
-    while (maxcount-- > 0) {
-        pos = fastsearch(str, j, sep, sep_len, -1, FAST_RSEARCH);
-        if (pos < 0)
-            break;
-        SPLIT_ADD(str, pos + sep_len, j);
-        j = pos;
-    }
-#ifndef STRINGLIB_MUTABLE
-    if (count == 0 && STRINGLIB_CHECK_EXACT(str_obj)) {
-        /* No match in str_obj, so just use it as list[0] */
-        Py_INCREF(str_obj);
-        PyList_SET_ITEM(list, 0, (PyObject *)str_obj);
-        count++;
-    } else
-#endif
-    {
-        SPLIT_ADD(str, 0, j);
-    }
-    FIX_PREALLOC_SIZE(list);
-    if (PyList_Reverse(list) < 0)
-        goto onError;
-    return list;
-
-  onError:
-    Py_DECREF(list);
-    return NULL;
-}
-
-Py_LOCAL_INLINE(PyObject *)
-stringlib_splitlines(PyObject* str_obj,
-                     const STRINGLIB_CHAR* str, Py_ssize_t str_len,
-                     int keepends)
-{
-    /* This does not use the preallocated list because splitlines is
-       usually run with hundreds of newlines.  The overhead of
-       switching between PyList_SET_ITEM and append causes about a
-       2-3% slowdown for that common case.  A smarter implementation
-       could move the if check out, so the SET_ITEMs are done first
-       and the appends only done when the prealloc buffer is full.
-       That's too much work for little gain.*/
-
-    register Py_ssize_t i;
-    register Py_ssize_t j;
-    PyObject *list = PyList_New(0);
-    PyObject *sub;
-
-    if (list == NULL)
-        return NULL;
-
-    for (i = j = 0; i < str_len; ) {
-        Py_ssize_t eol;
-
-        /* Find a line and append it */
-        while (i < str_len && !STRINGLIB_ISLINEBREAK(str[i]))
-            i++;
-
-        /* Skip the line break reading CRLF as one line break */
-        eol = i;
-        if (i < str_len) {
-            if (str[i] == '\r' && i + 1 < str_len && str[i+1] == '\n')
-                i += 2;
-            else
-                i++;
-            if (keepends)
-                eol = i;
-        }
-#ifndef STRINGLIB_MUTABLE
-        if (j == 0 && eol == str_len && STRINGLIB_CHECK_EXACT(str_obj)) {
-            /* No linebreak in str_obj, so just use it as list[0] */
-            if (PyList_Append(list, str_obj))
-                goto onError;
-            break;
-        }
-#endif
-        SPLIT_APPEND(str, j, eol);
-        j = i;
-    }
-    return list;
-
-  onError:
-    Py_DECREF(list);
-    return NULL;
-}
-
-#endif