Remove tools/flakes.py

Remove it as it is not needed.

Change-Id: Ib9308b880193aafb618120b9782d4863635d9fc3

tools/flakes.py

@@ -1,23 +0,0 @@
-"""
- wrapper for pyflakes to ignore gettext based warning:
-     "undefined name '_'"
-
- Synced in from openstack-common
-"""
-
-__all__ = ['main']
-
-import sys
-import six.moves.builtins as builtins
-import pyflakes.api
-from pyflakes import checker
-
-
-def main():
-    checker.Checker.builtIns = (set(dir(builtins)) |
-                                set(['_']) |
-                                set(checker._MAGIC_GLOBALS))
-    sys.exit(pyflakes.api.main())
-
-if __name__ == "__main__":
-    main()