Not sure if it works in Ubuntu as it does in openSUSE but try right clicking on the App Launcher icon (think Windows Start Menu button) and select the Edit option. You can go in and add/delete things as you desire.
Not sure if it works in Ubuntu as it does in openSUSE but try right clicking on the App Launcher icon (think Windows Start Menu button) and select the Edit option. You can go in and add/delete things as you desire.