[DeAngular][visualization][vislib] remove angular from vislib

* remove angular import and $scope from Binder class since there is
no usage in the code

Issue resolved:
#2137

Signed-off-by: Anan Zhuang <ananzh@amazon.com>

src/plugins/vis_type_vislib/public/vislib/lib/binder.ts

@@ -30,7 +30,6 @@
 
 import d3 from 'd3';
 import $ from 'jquery';
-import { IScope } from 'angular';
 
 export interface Emitter {
   on: (...args: any[]) => void;
@@ -42,13 +41,6 @@ export interface Emitter {
 export class Binder {
   private disposal: Array<() => void> = [];
 
-  constructor($scope: IScope) {
-    // support auto-binding to $scope objects
-    if ($scope) {
-      $scope.$on('$destroy', () => this.destroy());
-    }
-  }
-
   public on(emitter: Emitter, ...args: any[]) {
     const on = emitter.on || emitter.addListener;
     const off = emitter.off || emitter.removeListener;