diff --git a/libraries/u8glib/u8g_pb16v2.c b/libraries/u8glib/u8g_pb16v2.c
deleted file mode 100644
--- a/libraries/u8glib/u8g_pb16v2.c
+++ /dev/null
@@ -1,172 +0,0 @@
-/*
-
-  u8g_pb16v2.c
-  
-  16 bit height 2 bit per pixel page buffer
-  byte has vertical orientation
-
-  Universal 8bit Graphics Library
-  
-  Copyright (c) 2012, 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"
-#include <string.h>
-
-
-void u8g_pb16v2_Clear(u8g_pb_t *b)
-{
-  uint8_t *ptr = (uint8_t *)b->buf;
-  uint8_t *end_ptr = ptr;
-  
-  /* two bits per pixel, 16 bits height --> 8 pixel --> 4 pixel per byte */
-  end_ptr += b->width;
-  end_ptr += b->width;
-  
-  do
-  {
-    *ptr++ = 0;
-  } while( ptr != end_ptr );
-}
-
-void u8g_pb16v2Init(u8g_pb_t *b, void *buf, u8g_uint_t width)
-{
-  b->buf = buf;
-  b->width = width;
-  u8g_pb16v2_Clear(b);
-}
-
-void u8g_pb16v2_set_pixel(u8g_pb_t *b, u8g_uint_t x, u8g_uint_t y, uint8_t color_index)
-{
-  register uint8_t mask;
-  uint8_t *ptr = b->buf;
-  y -= b->p.page_y0;
-  if ( y >= 4 )
-  {
-    ptr += b->width;
-  }
-  mask = 0x03;
-  y &= 0x03;
-  y <<= 1;
-  mask <<= y;
-  mask ^=0xff;
-  color_index &= 3;
-  color_index <<= y;
-  ptr += x;
-  *ptr &= mask;
-  *ptr |= color_index;
-}
-
-
-void u8g_pb16v2_SetPixel(u8g_pb_t *b, const u8g_dev_arg_pixel_t * const arg_pixel)
-{
-  if ( arg_pixel->y < b->p.page_y0 )
-    return;
-  if ( arg_pixel->y > b->p.page_y1 )
-    return;
-  if ( arg_pixel->x >= b->width )
-    return;
-  u8g_pb16v2_set_pixel(b, arg_pixel->x, arg_pixel->y, arg_pixel->color);
-}
-
-
-void u8g_pb16v2_Set8PixelStd(u8g_pb_t *b, u8g_dev_arg_pixel_t *arg_pixel)
-{
-  register uint8_t pixel = arg_pixel->pixel;
-  do
-  {
-    if ( pixel & 128 )
-    {
-      u8g_pb16v2_SetPixel(b, arg_pixel);
-    }
-    switch( arg_pixel->dir )
-    {
-      case 0: arg_pixel->x++; break;
-      case 1: arg_pixel->y++; break;
-      case 2: arg_pixel->x--; break;
-      case 3: arg_pixel->y--; break;
-    }
-    pixel <<= 1;
-  } while( pixel != 0  );
-}
-
-
-
-uint8_t u8g_dev_pb16v2_base_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg)
-{
-  u8g_pb_t *pb = (u8g_pb_t *)(dev->dev_mem);
-  switch(msg)
-  {
-    case U8G_DEV_MSG_SET_8PIXEL:
-      if ( u8g_pb_Is8PixelVisible(pb, (u8g_dev_arg_pixel_t *)arg) )
-      {
-        u8g_pb16v2_Set8PixelStd(pb, (u8g_dev_arg_pixel_t *)arg);
-      }
-      break;
-    case U8G_DEV_MSG_SET_PIXEL:
-      u8g_pb16v2_SetPixel(pb, (u8g_dev_arg_pixel_t *)arg);
-      break;
-    case U8G_DEV_MSG_INIT:
-      break;
-    case U8G_DEV_MSG_STOP:
-      break;
-    case U8G_DEV_MSG_PAGE_FIRST:
-      u8g_pb16v2_Clear(pb);
-      u8g_page_First(&(pb->p));
-      break;
-    case U8G_DEV_MSG_PAGE_NEXT:
-      if ( u8g_page_Next(&(pb->p)) == 0 )
-        return 0;
-      u8g_pb16v2_Clear(pb);
-      break;
-#ifdef U8G_DEV_MSG_IS_BBX_INTERSECTION
-    case U8G_DEV_MSG_IS_BBX_INTERSECTION:
-      return u8g_pb_IsIntersection(pb, (u8g_dev_arg_bbx_t *)arg);
-#endif
-    case U8G_DEV_MSG_GET_PAGE_BOX:
-      u8g_pb_GetPageBox(pb, (u8g_box_t *)arg);
-      break;
-    case U8G_DEV_MSG_GET_WIDTH:
-      *((u8g_uint_t *)arg) = pb->width;
-      break;
-    case U8G_DEV_MSG_GET_HEIGHT:
-      *((u8g_uint_t *)arg) = pb->p.total_height;
-      break;
-    case U8G_DEV_MSG_SET_COLOR_ENTRY:
-      break;
-    case U8G_DEV_MSG_SET_XY_CB:
-      break;
-    case U8G_DEV_MSG_GET_MODE:
-      return U8G_MODE_GRAY2BIT;
-  }
-  return 1;
-}
- 
-