refactor: remove excessive __updateHorizontalScrollPosition call (#10305)

Author: vursen

packages/grid/src/vaadin-grid-scroll-mixin.js

@@ -7,7 +7,6 @@ import { microTask, timeOut } from '@vaadin/component-base/src/async.js';
 import { Debouncer } from '@vaadin/component-base/src/debounce.js';
 import { getNormalizedScrollLeft } from '@vaadin/component-base/src/dir-utils.js';
 import { OverflowController } from '@vaadin/component-base/src/overflow-controller.js';
-import { ResizeMixin } from '@vaadin/component-base/src/resize-mixin.js';
 
 const timeouts = {
   SCROLLING: 500,
@@ -18,7 +17,7 @@ const timeouts = {
  * @polymerMixin
  */
 export const ScrollMixin = (superClass) =>
-  class ScrollMixin extends ResizeMixin(superClass) {
+  class ScrollMixin extends superClass {
     static get properties() {
       return {
         /**
@@ -155,14 +154,6 @@ export const ScrollMixin = (superClass) =>
       this.addController(this.__overflowController);
     }
 
-    /**
-     * @protected
-     * @override
-     */
-    _onResize() {
-      this.__updateHorizontalScrollPosition();
-    }
-
     /**
      * Scroll to a flat index in the grid. The method doesn't take into account
      * the hierarchy of the items.