Revert "xwayland: Fix size issue when starting VLC fullscreen"

Revert "xwayland: Fix size issue when starting VLC fullscreen"

The fix caused a couple of issues:

1. Ignoring client configure requests caused some clients to hang
   and not repaint correctly. We are supposed to synthesize a
   ConfigureNotify event when ignore/override a client configure
   request, but this isn't possible with current wlroots.

2. Setting view->natural_geometry from client configure requests
   resulted in overwriting good values with bad in some cases (e.g.
   with tiled xfce4-terminal in xwayland mode).

For now, revert the fix. This does allow clients to mess with view
positioning for maximized/fullscreen/tiled views, but right now the
alternatives seem worse.

The original specific issue (VLC undoing its fullscreen geometry)
is arguably a bug in VLC anyway.

This reverts commit 09599861ac726b142a79ed60035809f04c151457.