安装应用程序后为什么出现两个应用程序图标？ Unity3D

Question

安装我的统一游戏应用程序后，我得到两个应用程序图标。我将google官方插件用于广告，并将他所说的所有内容都放在Androidmanifest.xml文件中。下面是我的代码，任何人都可以检查并帮助我。谢谢

<?xml version="1.0" encoding="utf-8"?>
<!--
This Google Mobile Ads plugin library manifest will get merged with your
application's manifest, adding the necessary activity and permissions
required for displaying ads.
-->

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.google.unity.ads"
    android:versionName="1.0"
    android:versionCode="1">
  <uses-sdk android:minSdkVersion="16" />

  <application>
       <meta-data
                android:name="com.google.android.gms.ads.APPLICATION_ID"
                android:value="[App_ID]"/>

      <meta-data
                android:name="com.google.android.gms.ads.AD_MANAGER_APP"
                android:value="true"/>
      <activity android:name="com.unity3d.player.UnityPlayerNativeActivity"
           android:label="@string/app_name">
           <intent-filter>
             <action android:name="android.intent.action.MAIN" />
             <category android:name="android.intent.category.LAUNCHER" />
           </intent-filter>
           <meta-data android:name="unityplayer.UnityActivity" android:value="true" />
           <meta-data android:name="unityplayer.ForwardNativeEventsToDalvik"
               android:value="true" />
    </activity>

  </application>
</manifest>