Remove fixqopengl.h

Qt stopped defining GLdouble type on uncontrolled ES2 platforms since
version 5.4.

fixqopengl.h

-/*
-    KWin - the KDE window manager
-    This file is part of the KDE project.
-
-    SPDX-FileCopyrightText: 2018 Bhushan Shah <bshah@kde.org>
-
-    SPDX-License-Identifier: GPL-2.0-or-later
-*/
-
-#ifndef FIXQOPENGL_H
-#define FIXQOPENGL_H
-
-// qopengl.h declares GLdouble as a typedef of float when Qt is built
-// with GLES support.  This conflicts with the epoxy/gl_generated.h
-// declaration, so we have to prevent the Qt header from being #included.
-#define QOPENGL_H
-
-#ifndef QOPENGLF_APIENTRY
-#define QOPENGLF_APIENTRY GLAPIENTRY
-#endif
-
-#ifndef QOPENGLF_APIENTRYP
-#define QOPENGLF_APIENTRYP GLAPIENTRYP
-#endif
-
-#endif //FIXQOPENGL_H

platform.h

@@ -11,7 +11,6 @@
 #include <kwin_export.h>
 #include <kwinglobals.h>
 #include <epoxy/egl.h>
-#include "fixqopengl.h"
 #include "input.h"
 
 #include <QImage>

plugins/qpa/backingstore.h

@@ -11,7 +11,6 @@
 #define KWIN_QPA_BACKINGSTORE_H
 
 #include <epoxy/egl.h>
-#include "fixqopengl.h"
 
 #include <qpa/qplatformbackingstore.h>
 

plugins/qpa/eglhelpers.h

@@ -10,7 +10,6 @@
 #pragma once
 
 #include <epoxy/egl.h>
-#include "fixqopengl.h"
 
 #include <QSurfaceFormat>
 

plugins/qpa/eglplatformcontext.h

@@ -11,7 +11,6 @@
 #pragma once
 
 #include <epoxy/egl.h>
-#include "fixqopengl.h"
 
 #include <qpa/qplatformopenglcontext.h>
 

plugins/qpa/integration.h

@@ -11,7 +11,6 @@
 #define KWIN_QPA_INTEGRATION_H
 
 #include <epoxy/egl.h>
-#include "fixqopengl.h"
 
 #include <qpa/qplatformintegration.h>
 #include <QObject>

plugins/qpa/offscreensurface.h

@@ -10,7 +10,6 @@
 #pragma once
 
 #include <epoxy/egl.h>
-#include "fixqopengl.h"
 
 #include <qpa/qplatformoffscreensurface.h>
 

plugins/qpa/window.h

@@ -11,7 +11,6 @@
 #define KWIN_QPA_WINDOW_H
 
 #include <epoxy/egl.h>
-#include "fixqopengl.h"
 
 #include <QPointer>
 #include <qpa/qplatformwindow.h>