Clean step to remove silent ringtone.
diff --git a/cleanspec.mk b/cleanspec.mk
index 0cd4fed..c244c46 100644
--- a/cleanspec.mk
+++ b/cleanspec.mk
@@ -84,7 +84,8 @@
$(call add-clean-step, rm -rf $(OUT_DIR)/product/*/obj/STATIC_LIBRARIES/lib?camera_intermediates)
$(call add-clean-step, rm -rf $(OUT_DIR)/target/product/*/obj/SHARED_LIBRARIES/libwebcore_intermediates)
$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/framework_intermediates)
-
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/media/audio/ringtones/Silence.ogg)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/media/audio/ringtones/notifications/Silence.ogg)
# ************************************************
# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
# ************************************************