fix. attachted more remove listener

lib/RtcEngine.native.js

      * @param eventType
      */
     static off(eventType) {
-        AgoraEventEmitter.removeAllListeners(eventType);
+        AgoraEventEmitter.removeListener(eventType, () => { });
         this.eventTypes.delete(eventType);
     }
     /**
      */
     static removeAllListeners() {
         for (let eventType of this.eventTypes) {
-            AgoraEventEmitter.removeAllListeners(eventType);
+            AgoraEventEmitter.removeListener(eventType, () => { });
         }
         this.eventTypes.clear();
     }

src/RtcEngine.native.ts

      * @param eventType
      */
     public static off(eventType: string) {
-        AgoraEventEmitter.removeAllListeners(eventType);
+        AgoraEventEmitter.removeListener(eventType, () => {});
         this.eventTypes.delete(eventType);
     }
 
      */
     public static removeAllListeners() {
         for (let eventType of this.eventTypes) {
-            AgoraEventEmitter.removeAllListeners(eventType);
+            AgoraEventEmitter.removeListener(eventType, () => {});
         }
         this.eventTypes.clear();
     }