Remove RGB_DI_PIN ifdefs (#20218)

keyboards/sck/osa/config.h

@@ -18,14 +18,12 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #pragma once
 
    #define RGB_DI_PIN D4
-   #ifdef RGB_DI_PIN
    #define RGBLED_NUM 9
    #define RGBLIGHT_HUE_STEP 10
    #define RGBLIGHT_SAT_STEP 17
    #define RGBLIGHT_VAL_STEP 17
    #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
 
 /*
  * Feature disable options