fix removeEventListener

Author: jljsj33

package.json

@@ -1,6 +1,6 @@
 {
   "name": "rc-scroll-anim",
-  "version": "0.6.1",
+  "version": "0.6.2",
   "description": "scroll-anim anim component for react",
   "keywords": [
     "react",

src/EventDispatcher.js

@@ -49,12 +49,12 @@ EventDispatcher.prototype = {
       i = list.length;
       while (--i > -1) {
         if (list[i].c === callback && (_force || list[i].n === namespaces)) {
-          list.splice(i, 1);
           if (this._eventTarget.removeEventListener) {
-            this._eventTarget.removeEventListener(list.t, list.func);
+            this._eventTarget.removeEventListener(list[i].t, list[i].func);
           } else if (this._eventTarget.detachEvent) {
-            this._eventTarget.detachEvent(`on${list.t}`, list.func);
+            this._eventTarget.detachEvent(`on${list[i].t}`, list[i].func);
           }
+          list.splice(i, 1);
           if (!_force) {
             return;
           }