Remove block padding (blank lines)

Also made a rule for it.

packages/vscode/src/fill/mouseEvent.ts

@@ -4,7 +4,6 @@ import * as mouse from "vs/base/browser/mouseEvent";
  * Fix the wheel event for Firefox.
  */
 class StandardWheelEvent extends mouse.StandardWheelEvent {
-
 	public constructor(event: mouse.IMouseWheelEvent | null) {
 		super(
 			event,
@@ -12,7 +11,6 @@ class StandardWheelEvent extends mouse.StandardWheelEvent {
 			(-(event as any as MouseWheelEvent).deltaY || 0) / 3, // tslint:disable-line no-any
 		);
 	}
-
 }
 
 const target = mouse as typeof mouse;