remove unused variable use and function call
remove unused variable use and function call

Reviewers: raster, zmike

CC: cedric

Differential Revision: https://phab.enlightenment.org/D867

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