diff --git a/system_stm32l1xx.h b/system_stm32l1xx.h
deleted file mode 100644
--- a/system_stm32l1xx.h
+++ /dev/null
@@ -1,106 +0,0 @@
-/**
-  ******************************************************************************
-  * @file    system_stm32l1xx.h
-  * @author  MCD Application Team
-  * @version V1.2.1
-  * @date    19-June-2013
-  * @brief   CMSIS Cortex-M3 Device Peripheral Access Layer System Header File.
-  ******************************************************************************
-  * @attention
-  *
-  * <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
-  *
-  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
-  * You may not use this file except in compliance with the License.
-  * You may obtain a copy of the License at:
-  *
-  *        http://www.st.com/software_license_agreement_liberty_v2
-  *
-  * Unless required by applicable law or agreed to in writing, software 
-  * distributed under the License is distributed on an "AS IS" BASIS, 
-  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  * See the License for the specific language governing permissions and
-  * limitations under the License.
-  *
-  ******************************************************************************
-  */
-
-/** @addtogroup CMSIS
-  * @{
-  */
-
-/** @addtogroup stm32l1xx_system
-  * @{
-  */  
-  
-/**
-  * @brief Define to prevent recursive inclusion
-  */
-#ifndef __SYSTEM_STM32L1XX_H
-#define __SYSTEM_STM32L1XX_H
-
-#ifdef __cplusplus
- extern "C" {
-#endif 
-
-/** @addtogroup STM32L1xx_System_Includes
-  * @{
-  */
-
-/**
-  * @}
-  */
-
-
-/** @addtogroup STM32L1xx_System_Exported_types
-  * @{
-  */
-
-extern uint32_t SystemCoreClock;          /*!< System Clock Frequency (Core Clock) */
-
-extern uint8_t clock_fail;
-
-/**
-  * @}
-  */
-
-/** @addtogroup STM32L1xx_System_Exported_Constants
-  * @{
-  */
-
-/**
-  * @}
-  */
-
-/** @addtogroup STM32L1xx_System_Exported_Macros
-  * @{
-  */
-
-/**
-  * @}
-  */
-
-/** @addtogroup STM32L1xx_System_Exported_Functions
-  * @{
-  */
-  
-extern void SystemInit(void);
-extern void SystemCoreClockUpdate(void);
-/**
-  * @}
-  */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /*__SYSTEM_STM32L1XX_H */
-
-/**
-  * @}
-  */
-  
-/**
-  * @}
-  */  
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/