Remove request to re-write cmath in Python. The goal had been to make

it easier to improve the cmath algorithms, but no one had shown an
interest.  The new plan is to await implementation of a full blown
complex type in C99.

pep-0042.txt

@@ -201,10 +201,6 @@ Standard Library
 
       http://www.python.org/sf/210631
 
-    - The cmath library should be rewritten in Python.
-
-      http://www.python.org/sf/210838
-
     - every built-in function or method (including all core
       extensions) that accepts a string, dict, or list, should also
       accept a UserString, UserDict, or UserList.  (The latter two