Remove unnecessary constructor parameter from Cursor

kasmweb/core/util/cursor.js

@@ -9,7 +9,7 @@ import { supportsCursorURIs, isTouchDevice } from './browser.js';
 const useFallback = !supportsCursorURIs() || isTouchDevice;
 
 export default class Cursor {
-    constructor(container) {
+    constructor() {
         this._target = null;
 
         this._canvas = document.createElement('canvas');