1.1.5dev: Removed `ctypes` import failure fallback.
1.1.5dev: Removed `ctypes` import failure fallback.

`ctypes` is available since Python 2.5. Refs #11987.


git-svn-id: eda3d06fcef731589ace1b284159cead3416df9b@14011 af82e41b-90c4-0310-8c96-b1721e28e2e2

walty8/trac,walty8/trac,walty8/trac,walty8/trac