Revert "cred: add missing return error code when set_cred_ucounts() failed"

This reverts commit 0855952ed4.

It breaks the abi and is not needed on Android kernels.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I65001e80f3776ae4ab56be5da555dba394278c68

kernel/cred.c

@@ -375,8 +375,7 @@ int copy_creds(struct task_struct *p, unsigned long clone_flags)
 		ret = create_user_ns(new);
 		if (ret < 0)
 			goto error_put;
-		ret = set_cred_ucounts(new);
+		if (set_cred_ucounts(new) < 0)
-		if (ret < 0)
 			goto error_put;
 	}