Revert "Move webview to /product"

This reverts commit c9b14af89f39430c8118ee0ee7b86fc8a71395b7.

Reason for revert: breaks products with artifact enforcements

Test: no
Change-Id: Ib567e770cef77a1cef8aee46c23519e1156e3aa6
diff --git a/Android.mk b/Android.mk
index 566b02e..581462e 100644
--- a/Android.mk
+++ b/Android.mk
@@ -22,7 +22,6 @@
 
 LOCAL_MODULE := webview
 LOCAL_MODULE_CLASS := APPS
-LOCAL_PRODUCT_MODULE := true
 LOCAL_MULTILIB := both
 LOCAL_CERTIFICATE := $(DEFAULT_SYSTEM_DEV_CERTIFICATE)
 LOCAL_REQUIRED_MODULES := \
diff --git a/CleanSpec.mk b/CleanSpec.mk
index 6e9f5aa..5464a64 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -47,6 +47,8 @@
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib64/libwebviewchromium.so)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/webview)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/webview)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/product/app/webview)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/product/app/webview)
 
 # ******************************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST ABOVE THIS BANNER