Fix 5194

I have been a bit too radical in cleaning up this section.

Marlin/ultralcd.cpp

           drawing_screen = 1;
         }
         lcd_setFont(FONT_MENU);
+        u8g.setColorIndex(1);
         CURRENTSCREEN();
         if (drawing_screen && (drawing_screen = u8g.nextPage())) {
           NOLESS(max_display_update_time, millis() - ms);

Marlin/ultralcd_impl_DOGM.h

 
   bool blink = lcd_blink();
 
-  // Black color, white background
-  u8g.setColorIndex(1);
-
   // Status Menu Font
   lcd_setFont(FONT_STATUSMENU);