diff --git a/libraries/USB/usb_def.h b/libraries/USB/usb_def.h
deleted file mode 100644
--- a/libraries/USB/usb_def.h
+++ /dev/null
@@ -1,92 +0,0 @@
-/**
-  ******************************************************************************
-  * @file    usb_def.h
-  * @author  MCD Application Team
-  * @version V4.0.0
-  * @date    28-August-2012
-  * @brief   Definitions related to USB Core
-  ******************************************************************************
-  * @attention
-  *
-  * <h2><center>&copy; COPYRIGHT 2012 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.
-  *
-  ******************************************************************************
-  */
-
-/* Define to prevent recursive inclusion -------------------------------------*/
-#ifndef __USB_DEF_H
-#define __USB_DEF_H
-
-/* Includes ------------------------------------------------------------------*/
-/* Exported types ------------------------------------------------------------*/
-typedef enum _RECIPIENT_TYPE
-{
-  DEVICE_RECIPIENT,     /* Recipient device */
-  INTERFACE_RECIPIENT,  /* Recipient interface */
-  ENDPOINT_RECIPIENT,   /* Recipient endpoint */
-  OTHER_RECIPIENT
-} RECIPIENT_TYPE;
-
-
-typedef enum _STANDARD_REQUESTS
-{
-  GET_STATUS = 0,
-  CLEAR_FEATURE,
-  RESERVED1,
-  SET_FEATURE,
-  RESERVED2,
-  SET_ADDRESS,
-  GET_DESCRIPTOR,
-  SET_DESCRIPTOR,
-  GET_CONFIGURATION,
-  SET_CONFIGURATION,
-  GET_INTERFACE,
-  SET_INTERFACE,
-  TOTAL_sREQUEST,  /* Total number of Standard request */
-  SYNCH_FRAME = 12
-} STANDARD_REQUESTS;
-
-/* Definition of "USBwValue" */
-typedef enum _DESCRIPTOR_TYPE
-{
-  DEVICE_DESCRIPTOR = 1,
-  CONFIG_DESCRIPTOR,
-  STRING_DESCRIPTOR,
-  INTERFACE_DESCRIPTOR,
-  ENDPOINT_DESCRIPTOR
-} DESCRIPTOR_TYPE;
-
-/* Feature selector of a SET_FEATURE or CLEAR_FEATURE */
-typedef enum _FEATURE_SELECTOR
-{
-  ENDPOINT_STALL,
-  DEVICE_REMOTE_WAKEUP
-} FEATURE_SELECTOR;
-
-/* Exported constants --------------------------------------------------------*/
-/* Definition of "USBbmRequestType" */
-#define REQUEST_TYPE      0x60  /* Mask to get request type */
-#define STANDARD_REQUEST  0x00  /* Standard request */
-#define CLASS_REQUEST     0x20  /* Class request */
-#define VENDOR_REQUEST    0x40  /* Vendor request */
-
-#define RECIPIENT         0x1F  /* Mask to get recipient */
-
-/* Exported macro ------------------------------------------------------------*/
-/* Exported functions ------------------------------------------------------- */
-
-#endif /* __USB_DEF_H */
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/