[Keyboard] Fix up and clean Corne Keyboard code (#6284)

* Fix corne  communication issues with LTO

* Fix up other issues with corne code

* Fix indentation

* Clang Format rev1 file for Corne

keyboards/crkbd/keymaps/default/keymap.c

@@ -1,11 +1,4 @@
 #include QMK_KEYBOARD_H
-#ifdef PROTOCOL_LUFA
-  #include "lufa.h"
-  #include "split_util.h"
-#endif
-#ifdef SSD1306OLED
-  #include "ssd1306.h"
-#endif
 
 extern keymap_config_t keymap_config;