[MSGINA] Fix gcc x86 build

Addendum to commit 1499e7e.

Poor thing was crying that it was ignoring trigraph `??)`, even
though this whole thing was inside an `#if 0`-commented block...
Use something else instead.

```
msgina/shutdown.c: In function 'ShutdownDialog':
msgina/shutdown.c:1217:56: error: trigraph ??) ignored, use -trigraphs to enable [-Werror=trigraphs]
     pgContext->nShutdownAction = LoadShutdownSelState(???);

msgina/shutdown.c: At top level:
cc1: error: unrecognized command line option '-Wno-unknown-warning-option' [-Werror]
```

Author: HBelusca

dll/win32/msgina/shutdown.c

@@ -1213,8 +1213,8 @@ ShutdownDialog(
     SHUTDOWN_DLG_CONTEXT Context = {0};
 
 #if 0
-    ShutdownOptions = GetAllowedShutdownOptions(???, pgContext->UserToken);
-    pgContext->nShutdownAction = LoadShutdownSelState(???);
+    ShutdownOptions = GetAllowedShutdownOptions(hKeyCurrentUser, pgContext->UserToken);
+    pgContext->nShutdownAction = LoadShutdownSelState(hKeyCurrentUser);
     ShutdownOptions &= ~dwExcludeOptions;
 #endif
 
@@ -1259,7 +1259,7 @@ ShutdownDialog(
 
 #if 0
     if (ret == IDOK)
-        SaveShutdownSelState(???, pgContext->nShutdownAction);
+        SaveShutdownSelState(hKeyCurrentUser, pgContext->nShutdownAction);
 #endif
 
     return ret;