VLCAppCoordinator: Remove useless view controller

This merge request brings a fix to:

• The player display controller that is not added to the tab bar anymore as it is not supposed to be selected by users.

Therefore it avoids adding an empty button to the tab bar as displayed below:

Even if the button has no title nor icon, users were able to select it. Since the player display controller has no displayable view it was leading to a black screen.

This behavior was noticeable while navigating through the application but was also preventing users from editing the media library.

Simulator_Screen_Recording_-iPad_Pro__12.9-inch___6th_generation_-_2023-05-23_at_14.33.51

Closes #1653 (closed)