revert, to show app name for upload from other app

AndroidManifest.xml

@@ -74,7 +74,6 @@
         <activity android:name=".ui.activity.ReceiveExternalFilesActivity"
                   android:taskAffinity=""
                   android:excludeFromRecents="true"
-                  android:label="@string/uploader_top_message"
                   android:theme="@style/Theme.ownCloud">
             <intent-filter>
                 <action android:name="android.intent.action.SEND" />