Remove RGB_DI_PIN ifdefs (#20218)

keyboards/kakunpc/business_card/beta/config.h

@@ -18,14 +18,12 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #pragma once
 
 #define RGB_DI_PIN D3
-#ifdef RGB_DI_PIN
    #define RGBLED_NUM 6
    #define RGBLIGHT_HUE_STEP 8
    #define RGBLIGHT_SAT_STEP 8
    #define RGBLIGHT_VAL_STEP 8
    #define RGBLIGHT_LIMIT_VAL 255 /* The maximum brightness level */
    #define RGBLIGHT_SLEEP  /* If defined, the RGB lighting will be switched off when the host goes to sleep */
-#endif
 
 /* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
 #define LOCKING_SUPPORT_ENABLE