fixed all license file headers in core

src/core/src/core.h

@@ -1,29 +1,8 @@
-/**
- * Copyright (C) 2013 Citrus Emulator
- *
- * @file    core.h
- * @author  ShizZy <shizzy247@gmail.com>
- * @date    2013-09-04
- * @brief   Core of emulator
- *
- * @section LICENSE
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program 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
- * General Public License for more details at
- * http://www.gnu.org/copyleft/gpl.html
- *
- * Official project repository can be found at:
- * http://code.google.com/p/gekko-gc-emu/
- */
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
 
-#ifndef CORE_CORE_H_
-#define CORE_CORE_H_
+#pragma once
 
 #include "arm/arm_interface.h"
 #include "arm/interpreter/armdefs.h"
@@ -59,7 +38,3 @@ int Init();
 void Shutdown();
 
 } // namespace
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
-
-#endif // CORE_CORE_H_