Clean up some U8G files

Marlin/src/lcd/dogm/HAL_LCD_com_defines.h

  *
  */
 
-// use this file to select the com driver for device drivers that are NOT in the U8G library
-
+// Use this file to select the com driver for device drivers that are NOT in the U8G library
 
 #ifndef U8G_HAL_LINKS
 
   #define U8G_COM_ST7920_HAL_SW_SPI u8g_com_null_fn
   #define U8G_COM_ST7920_HAL_HW_SPI u8g_com_null_fn
   #define U8G_COM_SSD_I2C_HAL u8g_com_null_fn
-#endif
+#endif

Marlin/src/lcd/dogm/u8g_dev_st7920_128x64_HAL.cpp

 
 #include "HAL_LCD_com_defines.h"
 
-#define WIDTH 128
-#define HEIGHT 64
-#define PAGE_HEIGHT 8
+#define LCD_PIXEL_WIDTH  128
+#define LCD_PIXEL_HEIGHT  64
+#define PAGE_HEIGHT        8
 
 /* init sequence from https://github.com/adafruit/ST7565-LCD/blob/master/ST7565/ST7565.cpp */
 static const uint8_t u8g_dev_st7920_128x64_HAL_init_seq[] PROGMEM = {
   u8g_SetAddress(u8g, dev, 0);         // cmd mode
   u8g_WriteByte(u8g, dev, 0x08);       //display off, cursor+blink off
   u8g_WriteByte(u8g, dev, 0x3E);       //extended mode + GDRAM active
-  for (uint8_t y = 0; y < (HEIGHT) / 2; y++) { //clear GDRAM
+  for (uint8_t y = 0; y < (LCD_PIXEL_HEIGHT) / 2; y++) { //clear GDRAM
     u8g_WriteByte(u8g, dev, 0x80 | y); //set y
     u8g_WriteByte(u8g, dev, 0x80);     //set x = 0
     u8g_SetAddress(u8g, dev, 1);                  /* data mode */
-    for (uint8_t i = 0; i < 2 * (WIDTH) / 8; i++) //2x width clears both segments
+    for (uint8_t i = 0; i < 2 * (LCD_PIXEL_WIDTH) / 8; i++) //2x width clears both segments
       u8g_WriteByte(u8g, dev, 0);
     u8g_SetAddress(u8g, dev, 0);           /* cmd mode */
   }
         }
 
         u8g_SetAddress(u8g, dev, 1);                  /* data mode */
-        u8g_WriteSequence(u8g, dev, WIDTH/8, ptr);
-        ptr += WIDTH/8;
+        u8g_WriteSequence(u8g, dev, (LCD_PIXEL_WIDTH) / 8, ptr);
+        ptr += (LCD_PIXEL_WIDTH) / 8;
         y++;
       }
       u8g_SetChipSelect(u8g, dev, 0);
         }
 
         u8g_SetAddress(u8g, dev, 1);                  /* data mode */
-        u8g_WriteSequence(u8g, dev, WIDTH/8, ptr);
-        ptr += WIDTH/8;
+        u8g_WriteSequence(u8g, dev, (LCD_PIXEL_WIDTH) / 8, ptr);
+        ptr += (LCD_PIXEL_WIDTH) / 8;
         y++;
       }
       u8g_SetChipSelect(u8g, dev, 0);
   return u8g_dev_pb32h1_base_fn(u8g, dev, msg, arg);
 }
 
-U8G_PB_DEV(u8g_dev_st7920_128x64_HAL_sw_spi, WIDTH, HEIGHT, PAGE_HEIGHT, u8g_dev_st7920_128x64_HAL_fn, U8G_COM_ST7920_HAL_SW_SPI);
+U8G_PB_DEV(u8g_dev_st7920_128x64_HAL_sw_spi, LCD_PIXEL_WIDTH, LCD_PIXEL_HEIGHT, PAGE_HEIGHT, u8g_dev_st7920_128x64_HAL_fn, U8G_COM_ST7920_HAL_SW_SPI);
 
-#define QWIDTH (WIDTH*4)
+#define QWIDTH ((LCD_PIXEL_WIDTH) * 4)
 uint8_t u8g_dev_st7920_128x64_HAL_4x_buf[QWIDTH] U8G_NOCOMMON ;
-u8g_pb_t u8g_dev_st7920_128x64_HAL_4x_pb = { {32, HEIGHT, 0, 0, 0},  WIDTH, u8g_dev_st7920_128x64_HAL_4x_buf};
+u8g_pb_t u8g_dev_st7920_128x64_HAL_4x_pb = { { 32, LCD_PIXEL_HEIGHT, 0, 0, 0 }, LCD_PIXEL_WIDTH, u8g_dev_st7920_128x64_HAL_4x_buf};
 u8g_dev_t u8g_dev_st7920_128x64_HAL_4x_sw_spi = { u8g_dev_st7920_128x64_HAL_4x_fn, &u8g_dev_st7920_128x64_HAL_4x_pb, U8G_COM_ST7920_HAL_SW_SPI };
 
-U8G_PB_DEV(u8g_dev_st7920_128x64_HAL_hw_spi, WIDTH, HEIGHT, PAGE_HEIGHT, u8g_dev_st7920_128x64_HAL_fn, U8G_COM_ST7920_HAL_HW_SPI);
+U8G_PB_DEV(u8g_dev_st7920_128x64_HAL_hw_spi, LCD_PIXEL_WIDTH, LCD_PIXEL_HEIGHT, PAGE_HEIGHT, u8g_dev_st7920_128x64_HAL_fn, U8G_COM_ST7920_HAL_HW_SPI);
 u8g_dev_t u8g_dev_st7920_128x64_HAL_4x_hw_spi = { u8g_dev_st7920_128x64_HAL_4x_fn, &u8g_dev_st7920_128x64_HAL_4x_pb, U8G_COM_ST7920_HAL_HW_SPI };
 
 #if defined(U8G_HAL_LINKS) || defined(__SAM3X8E__)

Marlin/src/lcd/dogm/ultralcd_st7920_u8glib_rrd_AVR.cpp

 
 #include "../../inc/MarlinConfig.h"
 
-#if ENABLED(U8GLIB_ST7920)
-
-#if !(defined(U8G_HAL_LINKS) || defined(__SAM3X8E__))
+#if ENABLED(U8GLIB_ST7920) && !defined(U8G_HAL_LINKS) && !defined(__SAM3X8E__)
 
 #include "../../HAL/shared/Delay.h"
 
 
 #pragma GCC reset_options
 
-#endif // U8G_HAL_LINKS
-
-#endif // U8GLIB_ST7920
+#endif // U8GLIB_ST7920 && !U8G_HAL_LINKS && !__SAM3X8E__