diff --git a/hardware/arduino/sam/cores/sam/USB_driver.cpp b/hardware/arduino/sam/cores/sam/USB_driver.cpp
deleted file mode 100644
index ce16fbdb1..000000000
--- a/hardware/arduino/sam/cores/sam/USB_driver.cpp
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
-  Copyright (c) 2011 Arduino.  All right reserved.
-
-  This library is free software; you can redistribute it and/or
-  modify it under the terms of the GNU Lesser General Public
-  License as published by the Free Software Foundation; either
-  version 2.1 of the License, or (at your option) any later version.
-
-  This library 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 Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public
-  License along with this library; if not, write to the Free Software
-  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
-*/
-
-#include "Arduino.h"
-#include "USB_driver.h"
-