Strip away copyrighted ICC profile

This images embed a non free ICC profile that doesn’t allow
modification.

Please use the proposed version stripping away this copyrighted binary
profile, probably embedded by an image software at one time:

	exiftool -icc_profile"-<=" www/test/images/cmyk_test2.jpg

I’ve checked the resulting image and trust it is identical to the
original.

Some more background on the issue:
https://lists.debian.org/debian-devel/2014/05/msg00339.html