Tidy 40percentclub boards (#4403)

* Remove unnecessary re-definitions for XXXXXXX and _______

* Update 6lit to use KC_NO in layout macros

* Update rules.mk to follow current template

* Remove use of deprecated function action_get_macro - unused and contents were from old template

* Remove use of deprecated function action_get_macro - all code was commented out

* Remove use of deprecated function action_get_macro - convert macro to use process_record_user

* Convert keymap to consistent use of _______

* fix use of old style header guards

* Swap KC_NO for XXXXXXX macro since the swap to the macro for KC_TRANS

* Resolve use of ?= in rules.mk files

* Remove duplication of rules.mk and config.h in gherkin mjt keymap

* Remove unnecessary #includes

* Align layout macros so foobar can use gherkin keymaps

* Align 6lit layout macros with foobar

* Remove ifndef QUANTUM_DIR from keymaps

keyboards/40percentclub/gherkin/keymaps/steno/config.h

@@ -1,12 +1,7 @@
-#ifndef CONFIG_USER_H
-#define CONFIG_USER_H
-
-#include "../../config.h"
+#pragma once
 
 #define NO_ACTION_LAYER
 #define NO_ACTION_TAPPING
 #define NO_ACTION_ONESHOT
 #define NO_ACTION_MACRO
 #define NO_ACTION_FUNCTION
-
-#endif

keyboards/40percentclub/gherkin/keymaps/steno/rules.mk

@@ -1,8 +1,4 @@
-ifndef QUANTUM_DIR
-  include ../../../../Makefile
-endif
-
-STENO_ENABLE = yes          # Additional protocols for Stenography(+1700), requires VIRTSER
+STENO_ENABLE = yes     # Additional protocols for Stenography(+1700), requires VIRTSER
 
 BOOTMAGIC_ENABLE = no  # Virtual DIP switch configuration(+1000)
 MOUSEKEY_ENABLE = no   # Mouse keys(+4700)
@@ -13,4 +9,4 @@ SLEEP_LED_ENABLE = no  # Breathing sleep LED during USB suspend
 NKRO_ENABLE = no       # USB Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
 BACKLIGHT_ENABLE = no  # Enable keyboard backlight functionality
 AUDIO_ENABLE = no
-RGBLIGHT_ENABLE = no
+RGBLIGHT_ENABLE = no