Remove dependencies on runtime_libdvm and libdvm.so in general

Bug: 14298175
Change-Id: I8441b64dc33543a912aebcfb8fdf76114ec50abe
diff --git a/CleanSpec.mk b/CleanSpec.mk
index 0af94e0..86c555b 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -252,6 +252,9 @@
 # Rename persist.sys.dalvik.vm.lib.1 to allow new default
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
 
+# Switching PRODUCT_RUNTIMES default for some devices
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
+
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
 # ************************************************