gnu: remove python-fix-dbm.patch

* gnu/packages/patches/python-fix-dbm.patch: remove file. It is not needed
  anymore, and is probably a left-over of a failed merge.
* gnu-system.am: remove gnu/packages/patches/python-fix-dbm.patch

gnu-system.am

@@ -311,7 +311,6 @@ dist_patch_DATA =						\
   gnu/packages/patches/perl-no-sys-dirs.patch			\
   gnu/packages/patches/plotutils-libpng-jmpbuf.patch		\
   gnu/packages/patches/procps-make-3.82.patch			\
-  gnu/packages/patches/python-fix-dbm.patch			\
   gnu/packages/patches/python-fix-tests.patch			\
   gnu/packages/patches/qemu-make-4.0.patch			\
   gnu/packages/patches/qemu-multiple-smb-shares.patch		\

gnu/packages/patches/python-fix-dbm.patch

@@ -1,20 +0,0 @@
-This patch allows the dbm module to be built using the compatibility mode of
-gdbm. It will not be needed any more with Python 2.7.4.
---- setup.py	2013-04-06 00:53:37.000000000 +0200
-+++ setup.py.new	2013-04-06 19:55:05.000000000 +0200
-@@ -1158,10 +1158,14 @@
-             for cand in dbm_order:
-                 if cand == "ndbm":
-                     if find_file("ndbm.h", inc_dirs, []) is not None:
--                        # Some systems have -lndbm, others don't
-+                        # Some systems have -lndbm, some have -lgdbm_compat,
-+                        # others have no particular linker flags.
-                         if self.compiler.find_library_file(lib_dirs,
-                                                                'ndbm'):
-                             ndbm_libs = ['ndbm']
-+                        elif self.compiler.find_library_file(lib_dirs,
-+                                                             'gdbm_compat'):
-+                            ndbm_libs = ['gdbm_compat']
-                         else:
-                             ndbm_libs = []
-                         print "building dbm using ndbm"