Remove useless check, flag functions as not receiving NULL.
Remove useless check, flag functions as not receiving NULL.

Caught by CLang, these functions will never receive NULL, so no point
in testing that.



SVN revision: 38555

rvandegrift/e,tizenorg/platform.upstream.enlightenment,tasn/enlightenment,tasn/enlightenment,tizenorg/platform.upstream.enlightenment,FlorentRevest/Enlightenment,tasn/enlightenment,tizenorg/platform.upstream.enlightenment,rvandegrift/e,rvandegrift/e,FlorentRevest/Enlightenment,FlorentRevest/Enlightenment