[WINLOGON] Fix build.

base/system/winlogon/sas.c

@@ -1140,7 +1140,6 @@ DispatchSAS(
     IN DWORD dwSasType)
 {
     DWORD wlxAction = WLX_SAS_ACTION_NONE;
-    HWND hwnd;
     PSID LogonSid = NULL; /* FIXME */
     BOOL bSecure = TRUE;
 

base/system/winlogon/wlx.c

@@ -105,7 +105,7 @@ GetDialogListEntry(HWND hwndDlg)
 }
 
 
-HWND
+VOID
 CloseAllDialogWindows(VOID)
 {
     PDIALOG_LIST_ENTRY Current;