Remove back-interceptor to not break expected behavior (#1574)

app/src/main/java/org/jellyfin/mobile/player/ui/PlayerFragment.kt

@@ -210,17 +210,6 @@ class PlayerFragment : Fragment(), BackPressInterceptor {
         }
     }
 
-    /**
-     * Exit fullscreen on first back-button press, otherwise exit directly
-     */
-    override fun onInterceptBackPressed(): Boolean = when {
-        playerFullscreenHelper.isFullscreen -> {
-            toggleFullscreen()
-            true
-        }
-        else -> super.onInterceptBackPressed()
-    }
-
     /**
      * Handle current orientation and update fullscreen state and switcher icon
      */