bpo-36625: Remove obsolete comments from docstrings in fractions module (GH-12822)

Remove left-over references to Python 3.0 as the future in Fraction class docstrings.

Lib/fractions.py

@@ -512,16 +512,16 @@ class Fraction(numbers.Rational):
             return a._numerator // a._denominator
 
     def __floor__(a):
-        """Will be math.floor(a) in 3.0."""
+        """math.floor(a)"""
         return a.numerator // a.denominator
 
     def __ceil__(a):
-        """Will be math.ceil(a) in 3.0."""
+        """math.ceil(a)"""
         # The negations cleverly convince floordiv to return the ceiling.
         return -(-a.numerator // a.denominator)
 
     def __round__(self, ndigits=None):
-        """Will be round(self, ndigits) in 3.0.
+        """round(self, ndigits)
 
         Rounds half toward even.
         """

Misc/ACKS

@@ -1099,6 +1099,7 @@ Tim Mitchell
 Zubin Mithra
 Florian Mladitsch
 Doug Moen
+Jakub Molinski
 Juliette Monsel
 The Dragon De Monsyne
 Bastien Montagne

Misc/NEWS.d/next/Documentation/2019-04-15-12-02-45.bpo-36625.x3LMCF.rst

@@ -0,0 +1 @@
+Remove obsolete comments from docstrings in fractions.Fraction