remove VSync option from mobile

source/funkin/ui/options/PreferencesMenu.hx

@@ -136,7 +136,8 @@ class PreferencesMenu extends Page<OptionsState.OptionsMenuPageName>
     #end
 
     // disabled on macos due to "error: Late swap tearing currently unsupported"
-    #if !mac
+    // disable on mobile since it barely has any effect
+    #if !(mac || mobile)
     createPrefItemEnum('VSync', 'If enabled, game will attempt to match framerate with your monitor.', [
       "Off" => WindowVSyncMode.OFF,
       "On" => WindowVSyncMode.ON,

source/funkin/util/WindowUtil.hx

@@ -163,7 +163,8 @@ class WindowUtil
   public static function setVSyncMode(value:lime.ui.WindowVSyncMode):Void
   {
     // vsync crap dont worky on mac rn derp
-    #if !mac
+    // and for mobile it isn't really needed
+    #if !(mac || mobile)
     var res:Bool = FlxG.stage.application.window.setVSyncMode(value);
 
     // SDL_GL_SetSwapInterval returns the value we assigned on success, https://wiki.libsdl.org/SDL2/SDL_GL_GetSwapInterval#return-value.