gengrid: Remove unnecessary if statement
gengrid: Remove unnecessary if statement

Summary: func.content_get is already checked in enclosed block.

Reviewers: seoz, cedric, raster

Reviewed By: seoz

Differential Revision: https://phab.enlightenment.org/D366

FlorentRevest/Elementary,tasn/elementary,FlorentRevest/Elementary,rvandegrift/elementary,rvandegrift/elementary,FlorentRevest/Elementary,tasn/elementary,tasn/elementary,tasn/elementary,tasn/elementary,rvandegrift/elementary,rvandegrift/elementary,FlorentRevest/Elementary