Tidy Keebio keyboards (#25653)

keyboards/keebio/quefrency/keymaps/default65/keymap.c

@@ -3,8 +3,6 @@
 
 #include QMK_KEYBOARD_H
 
-extern keymap_config_t keymap_config;
-
 // Each layer gets a name for readability, which is then used in the keymap matrix below.
 // The underscores don't mean anything - you can have a layer called STUFF or any other name.
 // Layer names don't all need to be of the same length, obviously, and you can also skip them
@@ -12,10 +10,6 @@ extern keymap_config_t keymap_config;
 #define _BASE 0
 #define _FN1 1
 
-enum custom_keycodes {
-  QWERTY = SAFE_RANGE,
-};
-
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
   [_BASE] = LAYOUT_65(
     QK_GESC, KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_DEL,  KC_BSPC, KC_HOME,