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diff --git a/kdecore/kxerrorhandler.h b/kdecore/kxerrorhandler.h
deleted file mode 100644
index 9c0bd1e24..000000000
--- a/kdecore/kxerrorhandler.h
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
-
-  Copyright (c) 2003 Lubos Lunak <l.lunak@kde.org>
-
-  Permission is hereby granted, free of charge, to any person obtaining a
-  copy of this software and associated documentation files (the "Software"),
-  to deal in the Software without restriction, including without limitation
-  the rights to use, copy, modify, merge, publish, distribute, sublicense,
-  and/or sell copies of the Software, and to permit persons to whom the
-  Software is furnished to do so, subject to the following conditions:
-
-  The above copyright notice and this permission notice shall be included in
-  all copies or substantial portions of the Software.
-
-  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
-  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
-  DEALINGS IN THE SOFTWARE.
-
-*/
-
-#ifndef KXERRORHANDLER_H
-#define KXERRORHANDLER_H
-
-#include <tqvaluelist.h>
-#include <tqwindowdefs.h>
-#include <kdelibs_export.h>
-#include <X11/Xlib.h>
-
-/**
- * This class simplifies handling of X errors. It shouldn't be necessary to use
- * with Qt classes, as the toolkit should handle X errors itself, so this
- * class will be mainly used with direct Xlib usage, and some lowlevel classes
- * like NETWinInfo.
- *
- * The usual usage is to create a KXErrorHandler instance right before starting
- * operations that might cause X errors, and checking if there was an error
- * by calling error() after the operations are finished. The handlers
- * may be nested, but must be destroyed in reverse order they were created.
- *
- * There's no need to do X sync before creating an instance, every instance
- * will handle only errors for request issued after the instance was created.
- * Errors for older requests will be passed to previous error handler.
- * When checking for error by calling error() at the end, it is necessary
- * to sync with X, to catch all errors that were caused by requests issued
- * before the call to error(). This can be done by passing true to error()
- * to cause explicit XSync(), however, if the last X request needed a roundtrip
- * (e.g. XGetWindowAttributes(), XGetGeometry(), etc.), it is not required
- * to do an explicit sync.
- *
- * @author Lubos Lunak <l.lunak@kde.org>
- * @short Handler for X errors
- */
-class KDECORE_EXPORT KXErrorHandler
-    {
-    public:
-        /**
-         * Creates error handler that will set error flag after encountering
-         * any X error.
-         */
-        KXErrorHandler( Display* dpy = qt_xdisplay());
-        /**
-         * This constructor takes pointer to a function that will get request number,
-         * error code number and resource id of the failed request, as provided
-         * by XErrorEvent. If the function returns true, the error flag will be set.
-         */
-        KXErrorHandler( bool (*handler)( int request, int error_code, unsigned long resource_id ), Display* dpy = qt_xdisplay());
-        /**
-         * This constructor takes pointer to a function whose prototype matches
-         * the one that's used with the XSetErrorHandler() Xlib function.
-         * NOTE: For the error flag to be set, the function must return non-zero
-         * value.
-         */
-        KXErrorHandler( int (*handler)( Display*, XErrorEvent* ), Display* dpy = qt_xdisplay());
-        /**
-         * This function returns true if the error flag is set (i.e. no custom handler
-         * function was used and there was any error, or the custom handler indicated
-         * an error by its return value).
-         *
-         * @param sync if true, and explicit XSync() will be done. Not necessary
-         *             when the last X request required a roundtrip.
-         */
-        bool error( bool sync ) const;
-        ~KXErrorHandler();
-    private:
-        void addHandler();
-        int handle( Display* dpy, XErrorEvent* e );
-        bool (*user_handler1)( int request, int error_code, unsigned long resource_id );
-        int (*user_handler2)( Display*, XErrorEvent* );
-        int (*old_handler)( Display*, XErrorEvent* );
-        unsigned long first_request;
-        Display* display;
-        bool was_error;
-        static int handler_wrapper( Display*, XErrorEvent* );
-        static KXErrorHandler** handlers;
-        static int pos;
-        static int size;
-        class KXErrorHandlerPrivate* d;
-    };
-
-#endif