Remove unnecessary pass statements (GH-27103)

Lib/lib2to3/btm_utils.py

@@ -220,7 +220,6 @@ def reduce_tree(node, parent=None):
             else:
                 #TODO: handle {min, max} repeaters
                 raise NotImplementedError
-                pass
 
         #add children
         if details_node and new_node is not None:

Lib/multiprocessing/managers.py

@@ -1337,7 +1337,6 @@ if HAS_SHMEM:
 
         def __del__(self):
             util.debug(f"{self.__class__.__name__}.__del__ by pid {getpid()}")
-            pass
 
         def get_server(self):
             'Better than monkeypatching for now; merge into Server ultimately'

Lib/telnetlib.py

@@ -489,7 +489,6 @@ class Telnet:
         except EOFError: # raised by self.rawq_getchar()
             self.iacseq = b'' # Reset on EOF
             self.sb = 0
-            pass
         self.cookedq = self.cookedq + buf[0]
         self.sbdataq = self.sbdataq + buf[1]