Revert "Add GCA prebuilt to app-helpers Android.mk"

This reverts commit b423437d5a2e80c2beb8dee5c1e8031b9e159c35.

Change-Id: Icaf5ae798abaf877d047f0bc4f374b3114b21253
diff --git a/libraries/app-helpers/Android.mk b/libraries/app-helpers/Android.mk
index efd5c74..25d4913 100644
--- a/libraries/app-helpers/Android.mk
+++ b/libraries/app-helpers/Android.mk
@@ -17,7 +17,7 @@
 
 include $(CLEAR_VARS)
 LOCAL_MODULE := app-helpers
-LOCAL_STATIC_JAVA_LIBRARIES := launcher-helper-lib base-app-helpers google-camera-app-helper-prebuilt \
+LOCAL_STATIC_JAVA_LIBRARIES := launcher-helper-lib base-app-helpers google-camera-app-helper \
                                youtube-app-helper photos-app-helper play-music-app-helper \
                                chrome-app-helper play-store-app-helper play-movies-app-helper \
                                gmail-app-helper maps-app-helper recents-app-helper \