winex11: Send SC_KEYMENU on managed windows.

Fixes https://bugs.winehq.org/show_bug.cgi?id=21918

Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>

dlls/user32/tests/msg.c

@@ -8826,8 +8826,7 @@ static void test_accelerators(void)
     keybd_event(VK_MENU, 0, 0, 0);
     keybd_event(VK_MENU, 0, KEYEVENTF_KEYUP, 0);
     pump_msg_loop(hwnd, 0);
-    /* this test doesn't pass in Wine for managed windows */
-    ok_sequence(WmAltPressRelease, "Alt press/release", TRUE);
+    ok_sequence(WmAltPressRelease, "Alt press/release", FALSE);
 
     trace("testing VK_F1 press/release\n");
     keybd_event(VK_F1, 0, 0, 0);
@@ -8847,7 +8846,7 @@ static void test_accelerators(void)
     keybd_event(VK_F10, 0, 0, 0);
     keybd_event(VK_F10, 0, KEYEVENTF_KEYUP, 0);
     pump_msg_loop(hwnd, 0);
-    ok_sequence(WmVkF10Seq, "VK_F10 press/release", TRUE);
+    ok_sequence(WmVkF10Seq, "VK_F10 press/release", FALSE);
 
     trace("testing SHIFT+F10 press/release\n");
     keybd_event(VK_SHIFT, 0, 0, 0);

dlls/winex11.drv/window.c

@@ -2789,17 +2789,6 @@ LRESULT CDECL X11DRV_SysCommand( HWND hwnd, WPARAM wparam, LPARAM lparam )
         default:               dir = _NET_WM_MOVERESIZE_SIZE_KEYBOARD; break;
         }
         break;
-
-    case SC_KEYMENU:
-        /* prevent a simple ALT press+release from activating the system menu,
-         * as that can get confusing on managed windows */
-        if ((WCHAR)lparam) goto failed;  /* got an explicit char */
-        if (GetMenu( hwnd )) goto failed;  /* window has a real menu */
-        if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_SYSMENU)) goto failed;  /* no system menu */
-        TRACE( "ignoring SC_KEYMENU wp %lx lp %lx\n", wparam, lparam );
-        release_win_data( data );
-        return 0;
-
     default:
         goto failed;
     }