fix(igxForOf): Remove unnecessary scroll position re-render for horizontal scr... (#13946)

Author: MayaKirova

projects/igniteui-angular/src/lib/directives/for-of/for_of.directive.spec.ts

@@ -189,7 +189,7 @@ describe('IgxForOf directive -', () => {
             expect(state.startIndex).toBe(1);
         });
 
-        it('should display the correct chunk items on resizing the container', () => {
+        it('should display the correct chunk items on resizing the container', async() => {
             // initially the container's width is narrow enough to be scrollable
             fix.componentInstance.width = '200px';
             fix.componentInstance.cols = [
@@ -214,6 +214,8 @@ describe('IgxForOf directive -', () => {
             // the container's width is assigned as wide as to display all cols
             fix.componentInstance.width = '600px';
             fix.detectChanges();
+            await wait(100);
+            fix.detectChanges();
 
             const secondRecChildren = fix.nativeElement.querySelectorAll(DISPLAY_CONTAINER)[1].children;
             for (let i = 0; i < secondRecChildren.length; i++) {

projects/igniteui-angular/src/lib/directives/for-of/for_of.directive.ts

@@ -1344,11 +1344,6 @@ export class IgxForOfDirective<T, U extends T[] = T[]> implements OnInit, OnChan
         if (prevChunkSize !== this.state.chunkSize) {
             this.chunkLoad.emit(this.state);
         }
-        if (this.sizesCache && this.igxForScrollOrientation === 'horizontal') {
-            // Updating horizontal chunks and offsets based on the new scrollLeft
-            const scrollOffset = this.fixedUpdateAllElements(this.scrollPosition);
-            this.dc.instance._viewContainer.element.nativeElement.style.left = -scrollOffset + 'px';
-        }
     }
 
     /**