Automatically go back to the "Setting" menu shortly after entering "delete" menu

Automatically go back to the "Setting" menu shortly after entering "delete" menu

[Issue#]   N/A
[Problem]  Steps to reproduce
           1. Go to "Setting" application
           2. Website settings -> select origin
           3. Select More key -> select delete
           4. Delete menu is shown briefly but goes back to previous menu right away.
[Cause]    Wrong API usage: 'elm_toolbar_item_selected_set' call is root cause of issue.
           After this API call, 'elm_toolbar_item_selected_set', elementary(toolbar) calls
           'clicked' callback function.
           Callback function move to current screen to previous menu.
[Solution] Removed API calling as this API is unnecessary.

Change-Id: Id8cbe959be6102efa62a470ee3d2da12e8ca5b68