Add a cleanstep to remove the obsolete EnhancedGoogleSearchProvider.apk,
which otherwise remains stale in system/app and eventually causes problems.
diff --git a/cleanspec.mk b/cleanspec.mk
index ac33141..f2384b9 100644
--- a/cleanspec.mk
+++ b/cleanspec.mk
@@ -144,6 +144,7 @@
 $(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/framework_intermediates/src/core/java/android/speech)
 $(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/Email_intermediates)
 $(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/AndroidTests_intermediates)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/EnhancedGoogleSearchProvider.apk)
 
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST