Cleanup/rgb matrix (#5811)

* clean up rgb matrix extern usage

Moved rgb matrix boiler plate into macros

Rebased onto typing heatmap pr

* Fixing the reversed frame buffer access in digital rain

* Fixing digital rain & typing heatmap if keyreactive effects are not enabled

* Apply suggestions from code review

Co-Authored-By: Drashna Jaelre <drashna@live.com>

* Adding parenthesizes to DRIVER_LED_TOTAL where necessary

* Updated docs

* added notes about parentheses

1 files changed, 0 insertions, 2 deletions

diff --git a/keyboards/massdrop/ctrl/keymaps/matthewrobo/keymap.c b/keyboards/massdrop/ctrl/keymaps/matthewrobo/keymap.c
index b4339a4d4..2823292e6 100644
--- a/keyboards/massdrop/ctrl/keymaps/matthewrobo/keymap.c
+++ b/keyboards/massdrop/ctrl/keymaps/matthewrobo/keymap.c
@@ -1,5 +1,4 @@
 #include QMK_KEYBOARD_H
-extern bool g_suspend_state;
 
 enum ctrl_layers {
         _QWERTY,
@@ -31,7 +30,6 @@ enum ctrl_keycodes {
 #define TG_NKRO MAGIC_TOGGLE_NKRO //Toggle 6KRO / NKRO mode
 #define LT_CAPS LT(_NAV, KC_CAPS)
 #define _V_V_V_ KC_TRNS
-extern rgb_config_t rgb_matrix_config;
 extern bool autoshift_enabled;