[WIN32K:NTUSER] Move the GetProcessLuid() function to the miscellaneous module.

win32ss/user/ntuser/shutdown.c

@@ -88,42 +88,6 @@ IntClientShutdown(IN PWND pWindow,
     return lResult;
 }
 
-
-NTSTATUS
-GetProcessLuid(IN PETHREAD Thread OPTIONAL,
-               OUT PLUID Luid)
-{
-    NTSTATUS Status;
-    PACCESS_TOKEN Token;
-    SECURITY_IMPERSONATION_LEVEL ImpersonationLevel;
-    BOOLEAN CopyOnOpen, EffectiveOnly;
-
-    if (Thread == NULL)
-        Thread = PsGetCurrentThread();
-
-    /* Use a thread token */
-    Token = PsReferenceImpersonationToken(Thread,
-                                          &CopyOnOpen,
-                                          &EffectiveOnly,
-                                          &ImpersonationLevel);
-    if (Token == NULL)
-    {
-        /* We don't have a thread token, use a process token */
-        Token = PsReferencePrimaryToken(PsGetThreadProcess(Thread));
-
-        /* If no token, fail */
-        if (Token == NULL)
-            return STATUS_NO_TOKEN;
-    }
-
-    /* Query the LUID */
-    Status = SeQueryAuthenticationIdToken(Token, Luid);
-
-    /* Get rid of the token and return */
-    ObDereferenceObject(Token);
-    return Status;
-}
-
 BOOLEAN
 HasPrivilege(IN PPRIVILEGE_SET Privilege)
 {