c: remove snippet

I don't use these :-)
vim: removed unused snippets
css: removed unused snippets
python: remov unsed snippets
php: remove unused snippets

I don't even write php code these days...
mako: remove unused snippets
objc: removed unused snippets
gsp: remove unused snippets

what is gsp?!
java: remove unused snippets
django: remove unused snippets
javacript: removed unused snippets
po: remove unused snippet

I didn't even know about it.