Move RGBLIGHT_LIMIT_VAL to data driven (#20974)

Co-authored-by: Nick Brassel <[email protected]>

keyboards/unison/v04/config.h

@@ -31,7 +31,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
   #define RGBLIGHT_HUE_STEP 4
   #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 */
   /*== Lighting Layers ==*/
   #define RGBLIGHT_LAYERS