Adding new filter icon (#20762)

src/sql/workbench/contrib/executionPlan/browser/executionPlanView.ts

@@ -267,14 +267,11 @@ export class ExecutionPlanView implements ISashLayoutProvider {
 			 * use the scroll bars.
 			 */
 			diagramContainer.addEventListener('wheel', e => {
-				this._parent.scrollTop += e.deltaY;
 				//Hiding all tooltips when we scroll.
 				const element = document.getElementsByClassName('mxTooltip');
 				for (let i = 0; i < element.length; i++) {
 					(<HTMLElement>element[i]).style.visibility = 'hidden';
 				}
-				e.preventDefault();
-				e.stopPropagation();
 			});
 
 			this._planContainer.appendChild(diagramContainer);