Using efl_data_scope_get to get Efl_Ui_Popup_Data structure,
there is no reason using "self" object in Efl_Ui_Popup_Data
Meh. Not very useful. We use this "self" pattern quite often and it's convenient.
Using efl_data_scope_safe_get for safety would make sense, but as is this patch is not meaningful. Also it doesn't apply.
Using efl_data_scope_safe_get here would give this patch some value.