Move RGBLIGHT_LIMIT_VAL to data driven (#20974)

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

keyboards/acheron/elongate/beta/config.h

@@ -21,7 +21,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
   #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 */
 #    define RGBLIGHT_EFFECT_BREATHING
 #    define RGBLIGHT_EFFECT_RAINBOW_MOOD

keyboards/acheron/elongate/delta/config.h

@@ -22,7 +22,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define BACKLIGHT_PAL_MODE 1
 
 #define RGBLED_NUM 16
-#define RGBLIGHT_LIMIT_VAL 200
 #define RGBLIGHT_SLEEP
 #define RGBLIGHT_EFFECT_BREATHING
 #define RGBLIGHT_EFFECT_RAINBOW_MOOD

keyboards/acheron/elongate/delta/info.json

@@ -19,6 +19,9 @@
         "breathing": true,
         "breathing_period": 3
     },
+    "rgblight": {
+        "max_brightness": 200
+    },
     "ws2812": {
         "pin": "B15"
     },