cmd/hsu: remove parent check

This check serves no real purpose and only makes it more difficult to start containers.

Signed-off-by: Ophestra <cat@gensokyo.uk>

test/test.py

@@ -92,8 +92,10 @@ print(denyOutput)
 denyOutputVerbose = machine.fail("sudo -u untrusted -i hakurei -v exec &>/dev/stdout")
 print(denyOutputVerbose)
 
-# Fail direct hsu call:
-print(machine.fail("sudo -u alice -i hsu"))
+# Direct hsu call:
+userid = machine.succeed("sudo -u alice -i hsu")
+if userid != "0":
+    raise Exception(f"unexpected userid: {userid}")
 
 # Verify hsu fault behaviour:
 if denyOutput != "hsu: uid 1001 is not in the hsurc file\n":