feat(inkwell): update from suggestions

keyboards/planck/keymaps/inkwell/keymap.c

@@ -25,10 +25,6 @@ enum planck_layers {
   _ADJUST
 };
 
-enum planck_keycodes {
-  QWERTY = SAFE_RANGE
-};
-
 #define LOWER MO(_LOWER)
 #define RAISE MO(_RAISE)
 
@@ -119,19 +115,6 @@ layer_state_t layer_state_set_user(layer_state_t state) {
   return update_tri_layer_state(state, _LOWER, _RAISE, _ADJUST);
 }
 
-bool process_record_user(uint16_t keycode, keyrecord_t *record) {
-  switch (keycode) {
-    case QWERTY:
-      if (record->event.pressed) {
-        print("mode is qwerty\n");
-        set_single_persistent_default_layer(_QWERTY);
-      }
-      return false;
-      break;
-  }
-  return true;
-}
-
 bool encoder_update_user(uint8_t index, bool clockwise) {
     if (IS_LAYER_ON(_RAISE)) {
         if (get_mods() & MOD_BIT(KC_RSFT)) {