Revert "ssd1306 2D and font"

This reverts commit cd315788c8.

extras/fonts/fonts.h

@@ -1,38 +0,0 @@
-/*
- * fonts.h
- *
- *  Created on: 8 dec. 2016
- *      Author: zaltora
- */
-
-#ifndef FONTS_H
-#define FONTS_H
-
-#include <FreeRTOS.h>
-#include "config.h"
-
-/**
- * Character descriptor
- */
-typedef struct _font_char_desc
-{
-    uint8_t width;      //Character width in pixel
-    uint16_t offset;    //Offset of this character in bitmap
-} font_char_desc_t;
-
-/**
- * Font information
- */
-typedef struct _font_info
-{
-    uint8_t height;         //Character height in pixel, all characters have same height
-    uint8_t c;              //Simulation of "C" width in TrueType term, the space between adjacent characters
-    char char_start;        //First character
-    char char_end;          //Last character
-    const font_char_desc_t* char_descriptors; //descriptor for each character
-    const uint8_t *bitmap;  //Character bitmap
-} font_info_t;
-
-extern const font_info_t* fonts[NUM_FONTS];  //Built-in fonts
-
-#endif // _FONTS__H_