CM: disable root by default

Change-Id: Iab89190038e164ebd7f806050d552a2b3bdccc58
diff --git a/config/common.mk b/config/common.mk
index 2a87112..b1a6a82 100644
--- a/config/common.mk
+++ b/config/common.mk
@@ -203,22 +203,16 @@
 
 # These packages are excluded from user builds
 ifneq ($(TARGET_BUILD_VARIANT),user)
-
 PRODUCT_PACKAGES += \
     procmem \
     procrank \
     Superuser \
     su
-
-PRODUCT_PROPERTY_OVERRIDES += \
-    persist.sys.root_access=1
-else
+endif
 
 PRODUCT_PROPERTY_OVERRIDES += \
     persist.sys.root_access=0
 
-endif
-
 PRODUCT_PACKAGE_OVERLAYS += vendor/cm/overlay/common
 
 PRODUCT_VERSION_MAJOR = 12