Revert "wayland: Don't try to restore non-resizable windows"

This reverts commit e35c3872dc.

(cherry picked from commit 180afcdf39)

src/video/wayland/SDL_waylandwindow.c

@@ -1760,10 +1760,6 @@ void Wayland_RestoreWindow(_THIS, SDL_Window *window)
         return;
     }
 
-    if (!(window->flags & SDL_WINDOW_RESIZABLE)) {
-            return;
-    }
-
     /* Set this flag now even if we never actually maximized, eventually
      * ShowWindow will take care of it along with the other window state.
      */