fix: delete deprecated MainActivity

Author: lapanoid-tech

android/app/src/main/AndroidManifest.xml

@@ -19,14 +19,7 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
-        <!--<activity-->
-            <!--android:name=".MainActivity"-->
-            <!--android:label="@string/app_name">-->
-            <!--<intent-filter>-->
-                <!--<action android:name="android.intent.action.MAIN" />-->
-                <!--<category android:name="android.intent.category.LAUNCHER" />-->
-            <!--</intent-filter>-->
-        <!--</activity>-->
+
         <!-- Main music service, provides media browsing and media playback services to
          consumers through MediaBrowserService and MediaSession. Consumers connect to it through
          MediaBrowser (for browsing) and MediaController (for play session control) -->

android/app/src/main/java/com/publicradionative/MainActivity.java

@@ -29,7 +29,6 @@
 import com.facebook.react.modules.core.DefaultHardwareBackBtnHandler;
 import com.facebook.react.shell.MainReactPackage;
 import com.oblador.vectoricons.VectorIconsPackage;
-
 import java.util.List;
 
 /**
@@ -38,7 +37,6 @@
 public class MusicPlayerActivity extends AppCompatActivity  implements DefaultHardwareBackBtnHandler {
     private ReactInstanceManager mReactInstanceManager;
     private ReactRootView mReactRootView;
-
     private MediaBrowser mMediaBrowser;
 
     private final MediaBrowser.ConnectionCallback mConnectionCallback =