screen: remove mks-screen-private.h

It wasn't doing anything for us, so just remove it.

lib/mks-screen-private.h

@@ -1,28 +0,0 @@
-/*
- * mks-screen-private.h
- *
- * Copyright 2023 Christian Hergert <chergert@redhat.com>
- *
- * This library is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 2.1 of the
- * License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- * SPDX-License-Identifier: LGPL-2.1-or-later
- */
-
-#pragma once
-
-#include "mks-screen.h"
-
-G_BEGIN_DECLS
-
-G_END_DECLS

lib/mks-screen.c

@@ -33,7 +33,7 @@
 #include "mks-mouse-private.h"
 #include "mks-paintable-private.h"
 #include "mks-screen-attributes-private.h"
-#include "mks-screen-private.h"
+#include "mks-screen.h"
 
 struct _MksScreenClass
 {

lib/mks-session.c

@@ -24,7 +24,7 @@
 #include "mks-device-private.h"
 #include "mks-read-only-list-model-private.h"
 #include "mks-qemu.h"
-#include "mks-screen-private.h"
+#include "mks-screen.h"
 #include "mks-session.h"
 
 /**