elm genlist.c: Removed elm_object_item_content_set/unset, text_set hook.
elm genlist.c: Removed elm_object_item_content_set/unset, text_set hook.

SVN revision: 70153

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