remove unnecessary textview

src/main/java/com/owncloud/android/ui/activity/ParticipateActivity.java

@@ -58,8 +58,6 @@ public class ParticipateActivity extends FileActivity {
 
 
     private void setupContent() {
-        TextView betaView = (TextView) findViewById(R.id.participate_beta_text);
-
         TextView rcView = (TextView) findViewById(R.id.participate_release_candidate_text);
         rcView.setMovementMethod(LinkMovementMethod.getInstance());