snapshotctl don't auto-merge.

update_engine is now responsible for initiating the merge. snapshotctl
becomes a debugging tool for libsnapshot now.

Bug: 147696014
Test: libsnapshot_test

Change-Id: Ia2527a35e0c0f0789dbe5c477e174663ef406903
Merged-In: Ia2527a35e0c0f0789dbe5c477e174663ef406903
diff --git a/CleanSpec.mk b/CleanSpec.mk
index c84bd24..0a534a2 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -90,3 +90,4 @@
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/debug_ramdisk/product_services)
 $(call add-clean-step, find $(PRODUCT_OUT) -type l -name "charger" -print0 | xargs -0 rm -f)
 $(call add-clean-step, rm -f $(PRODUCT_OUT)/system/bin/adbd)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/etc/init/snapshotctl.rc)