Disable this check that was submitted by mistake.

There's still one device that doesn't build with this check enabled.

Change-Id: I962afe9c739df15e77ead30311c34be411674f53
diff --git a/core/main.mk b/core/main.mk
index 9a566caf..7a1d42d 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -472,7 +472,7 @@
 
 # Before we go and include all of the module makefiles, stash away
 # the PRODUCT_* values so you can't get to them.
-stash_product_vars:=true
+stash_product_vars:=#true
 ifeq ($(stash_product_vars),true)
   $(call stash-product-vars, __STASHED, DO_NOT_USE_IN_ANDROID_MK_)
 endif