Move RGBLIGHT_LIMIT_VAL to data driven (#20974)

Co-authored-by: Nick Brassel <nick@tzarc.org>

keyboards/rura66/rev1/config.h

@@ -24,7 +24,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
   #define RGBLED_NUM 66 // Number of LEDs
   #define RGBLIGHT_SPLIT
   #define RGBLED_SPLIT { 33, 33 }
-  #define RGBLIGHT_LIMIT_VAL 120 /* The maximum brightness level */
   #define RGBLIGHT_HUE_STEP 8
   #define RGBLIGHT_SAT_STEP 8
   #define RGBLIGHT_VAL_STEP 8

keyboards/rura66/rev1/info.json

@@ -11,6 +11,9 @@
   "rgb_matrix": {
     "driver": "WS2812"
   },
+  "rgblight": {
+    "max_brightness": 120
+  },
   "matrix_pins": {
     "cols": ["F4", "F5", "F6", "F7", "B1", "B3", "B2"],
     "rows": ["D4", "C6", "D7", "E6", "B4"]