Revert "Fix grouper build by allowing mknod in recovery"

grouper is dead.

This reverts commit 9c7570ef.

Change-Id: I4fcca5b89cd76e97f56290e2f8858ec4399fd4e5

domain.te

@@ -194,7 +194,6 @@ neverallow {
   -init
   -ueventd
   -vold
-  -recovery
 } self:capability mknod;
 
 # Limit raw I/O to these whitelisted domains.