diff --git a/libraries/u8glib/u8g_com_null.c b/libraries/u8glib/u8g_com_null.c
deleted file mode 100644
--- a/libraries/u8glib/u8g_com_null.c
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
-
-  u8g_com_null.c
- 
-  communication null device
-
-  Universal 8bit Graphics Library
- 
-  Copyright (c) 2011, olikraus@gmail.com
-  All rights reserved.
-
-  Redistribution and use in source and binary forms, with or without modification,
-  are permitted provided that the following conditions are met:
-
-  * Redistributions of source code must retain the above copyright notice, this list
-    of conditions and the following disclaimer.
-   
-  * Redistributions in binary form must reproduce the above copyright notice, this
-    list of conditions and the following disclaimer in the documentation and/or other
-    materials provided with the distribution.
-
-  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-  CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
-  INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
-  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  
- 
- 
-*/
-
-#include "u8g.h"
-
-uint8_t u8g_com_null_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr)
-{
-  switch(msg)
-  {
-    case U8G_COM_MSG_INIT:
-      break;
-    case U8G_COM_MSG_STOP:
-      break;
-
-   
-    case U8G_COM_MSG_CHIP_SELECT:
-      /* arg_val contains the chip number, which should be enabled */
-      break;
-
-
-    case U8G_COM_MSG_WRITE_BYTE:
-      break;
-    case U8G_COM_MSG_WRITE_SEQ:
-      break;
-  }
-  return 1;
-}
-