Include file_contexts conditionally elsewhere

Test: Marlin and Bullhead build and boot with no new denials.
Test: Marlin and Bullhead recovery boots with no new denials.
Test: Bullhead boots with file_contexts.bin in /
Test: Marlin boot with /system/etc/selinux/plat_file_contexts and
      /vendor/etc/selinux/nonplat_file_contexts.
Bug: 36002414

Change-Id: I25af653e060c0c72ea6ad08db8869132885adff8
diff --git a/target/product/embedded.mk b/target/product/embedded.mk
index e26c628..51adbdb 100644
--- a/target/product/embedded.mk
+++ b/target/product/embedded.mk
@@ -84,13 +84,10 @@
 
 # SELinux packages
 PRODUCT_PACKAGES += \
-    file_contexts.bin \
-    nonplat_file_contexts \
     nonplat_mac_permissions.xml \
     nonplat_property_contexts \
     nonplat_seapp_contexts \
     nonplat_service_contexts \
-    plat_file_contexts \
     plat_mac_permissions.xml \
     plat_property_contexts \
     plat_seapp_contexts \