remove deprecated code related with  elm_image_scale_set/get function.
remove deprecated code related with 
elm_image_scale_set/get
function.


SVN revision: 69277

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