kernel: Remove NULL-ing after commit_creds

* Although it works, but i suspect it causing reboot
* issue in some device, so i'll drop it

Signed-off-by: rsuntk <rissu.ntk@gmail.com>

kernel/core_hook.c

@@ -186,13 +186,6 @@ void escape_to_root(void)
 
 	commit_creds(cred);
 
-	// FIXME: Maybe need to remove? The tests were fine.
-	// reference: https://elixir.bootlin.com/linux/v5.4/source/fs/exec.c#L1456
-	if (cred) {
-		pr_info("%s: NULL-ing creds after committing..\n", __func__);
-		cred = NULL;
-	}
-
 	// Refer to kernel/seccomp.c: seccomp_set_mode_strict
 	// When disabling Seccomp, ensure that current->sighand->siglock is held during the operation.
 	spin_lock_irq(&current->sighand->siglock);