icons: Remove brand guideline opposing color variants of 'wikimedia' pack logos
icons: Remove brand guideline opposing color variants of 'wikimedia' pack logos

Every icon pack follows the same color variants logic, nonetheless I think
it makes sense to break it here. The colored logos are against brand
guidelines and we're not doing any favor in shipping them.

Change-Id: I0a1ad53aa5d14f3704cba214b5d0485e2a2ee45a

wikimedia/oojs-ui,wikimedia/oojs-ui,wikimedia/oojs-ui,wikimedia/oojs-ui