user32: Remove redundant system menu handle checks.

dlls/user32/defwnd.c

@@ -298,10 +298,6 @@ static LRESULT DEFWND_DefWinProc( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lPa
         {
             LONG hitcode;
             POINT pt;
-            WND *wndPtr = WIN_GetPtr( hwnd );
-            HMENU hMenu = wndPtr->hSysMenu;
-            WIN_ReleasePtr( wndPtr );
-            if (!hMenu) return 0;
             pt.x = (short)LOWORD(lParam);
             pt.y = (short)HIWORD(lParam);
             hitcode = NC_HandleNCHitTest(hwnd, pt);
@@ -315,16 +311,11 @@ static LRESULT DEFWND_DefWinProc( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lPa
         break;
 
     case WM_POPUPSYSTEMMENU:
-        {
-            /* This is an undocumented message used by the windows taskbar to
-               display the system menu of windows that belong to other processes. */
-            HMENU menu = GetSystemMenu(hwnd, FALSE);
-
-            if (menu)
-                TrackPopupMenu(menu, TPM_LEFTBUTTON|TPM_RIGHTBUTTON,
-                               LOWORD(lParam), HIWORD(lParam), 0, hwnd, NULL);
-            return 0;
-        }
+        /* This is an undocumented message used by the windows taskbar to
+           display the system menu of windows that belong to other processes. */
+        TrackPopupMenu( GetSystemMenu(hwnd, FALSE), TPM_LEFTBUTTON|TPM_RIGHTBUTTON,
+                        (short)LOWORD(lParam), (short)HIWORD(lParam), 0, hwnd, NULL );
+        return 0;
 
     case WM_NCACTIVATE:
         return NC_HandleNCActivate( hwnd, wParam, lParam );