cpu: arm7_common: remove obsolete hwtimer support

cpu/arm7_common/include/hwtimer_cpu.h

@@ -1,37 +0,0 @@
-/*
- * Copyright (C) 2009 Freie Universität Berlin
- *
- * This file is subject to the terms and conditions of the GNU Lesser
- * General Public License v2.1. See the file LICENSE in the top level
- * directory for more details.
- */
-
-/*
- * lpc2387_timer_0_1.h
- *
- *  Created on: 15.01.2009
- *      Author: heiko, kaspar
- *
- *      Changelog:
- *                  26.01.09 kaspar: renamed file, misc changes for firekernel
- */
-
-#ifndef HWTIMER_CPU_H_
-#define HWTIMER_CPU_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define HWTIMER_MAXTIMERS 4
-#define HWTIMER_SPEED 1000000
-#define HWTIMER_MAXTICKS (0xFFFFFFFF)
-
-#define HWTIMER_MSEC  (HWTIMER_SPEED/1000)
-#define HWTIMER_SEC   (HWTIMER_SPEED)
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* HWTIMER_CPU_H_ */