Remove the explicit 'Update voices' menu option now that this is done automatically.

android/res/menu/options.xml

 <?xml version="1.0" encoding="utf-8"?>
 <menu xmlns:android="http://schemas.android.com/apk/res/android" >
-    <item android:id="@+id/updateVoices" android:title="@string/update_voices"></item>
     <item android:id="@+id/espeakSettings" android:title="@string/engine_settings"></item>
     <item android:id="@+id/ttsSettings" android:title="@string/tts_settings"></item>
     

android/res/values/strings.xml

         <item>4x</item>
         <item>5x</item>
     </string-array>
-        <string name="update_voices">Update voices</string>
         <string name="status">Status</string>
 
 </resources>

android/src/com/reecedunn/espeak/eSpeakActivity.java

         case R.id.ttsSettings:
             launchGeneralTtsSettings();
             return true;
-        case R.id.updateVoices:
-            downloadVoiceData();
-            return true;
         }
         return super.onOptionsItemSelected(item);
     }