Revert "Add UI reskin by LJ Birdman (WiP)"

This reverts commit 0200a2688a.

src/ui/ui-handler.ts

@@ -1,5 +1,4 @@
 import BattleScene, { Button } from "../battle-scene";
-import { TextStyle, getTextColor } from "./text";
 import UI, { Mode } from "./ui";
 
 export default abstract class UiHandler {
@@ -27,10 +26,6 @@ export default abstract class UiHandler {
     return this.scene.ui;
   }
 
-  getTextColor(style: TextStyle, shadow: boolean = false): string {
-    return getTextColor(style, shadow, this.scene.uiTheme);
-  }
-
   getCursor(): integer {
     return this.cursor;
   }