diff --git a/android/sample/AndroidManifest.xml b/android/sample/AndroidManifest.xml
index d053db33a..f25295f7f 100644
--- a/android/sample/AndroidManifest.xml
+++ b/android/sample/AndroidManifest.xml
@@ -24,8 +24,7 @@
         <category android:name="android.intent.category.LAUNCHER"/>
       </intent-filter>
     </activity>
-    <activity android:name="com.facebook.sonar.android.diagnostics.SonarDiagnosticActivity"
-        android:exported="true"/>
   </application>
 
+
 </manifest>
diff --git a/android/src/main/java/com/facebook/sonar/android/diagnostics/SonarDiagnosticActivity.java b/android/src/main/java/com/facebook/sonar/android/diagnostics/SonarDiagnosticActivity.java
deleted file mode 100644
index 69df20cfb..000000000
--- a/android/src/main/java/com/facebook/sonar/android/diagnostics/SonarDiagnosticActivity.java
+++ /dev/null
@@ -1,64 +0,0 @@
-package com.facebook.sonar.android.diagnostics;
-
-import android.app.Activity;
-import android.content.Context;
-import android.os.Bundle;
-import android.widget.Toast;
-import com.facebook.sonar.android.AndroidSonarClient;
-import com.facebook.sonar.core.SonarClient;
-import com.facebook.sonar.core.SonarStateUpdateListener;
-import android.widget.LinearLayout;
-import android.view.View;
-import android.widget.TextView;
-import android.widget.ScrollView;
-
-public class SonarDiagnosticActivity extends Activity implements SonarStateUpdateListener {
-
-  private TextView textView;
-  private ScrollView scrollView;
-
-  @Override
-  protected void onCreate(Bundle savedInstanceState) {
-    super.onCreate(savedInstanceState);
-
-    LinearLayout root = new LinearLayout(this);
-
-    textView = new TextView(this);
-    scrollView = new ScrollView(this);
-    scrollView.addView(textView);
-    root.addView(scrollView);
-
-    setContentView(root);
-  }
-
-  protected void onStart() {
-    super.onStart();
-    SonarClient client = AndroidSonarClient.getInstance(this);
-    client.subscribeForUpdates(this);
-    textView.setText(client.getState());
-  }
-
-  protected void onResume() {
-    super.onResume();
-    scrollView.fullScroll(View.FOCUS_DOWN);
-  }
-
-@Override
-  public void onUpdate() {
-    final Context context = this;
-    final String state = AndroidSonarClient.getInstance(context).getState();
-    runOnUiThread(new Runnable() {
-      @Override
-      public void run() {
-        textView.setText(state);
-        scrollView.fullScroll(View.FOCUS_DOWN);
-      }
-    });
-  }
-
-  protected void onStop() {
-    super.onStop();
-    SonarClient client = AndroidSonarClient.getInstance(this);
-    client.unsubscribe();
-  }
-}