Move RGBLED_NUM to data driven (#21278)

keyboards/leafcutterlabs/bigknob/config.h

@@ -28,4 +28,3 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define RGBLIGHT_EFFECT_RGB_TEST
 #define RGBLIGHT_EFFECT_ALTERNATING
 #define RGBLIGHT_EFFECT_TWINKLE
-#define RGBLED_NUM 5    // Number of LEDs

keyboards/leafcutterlabs/bigknob/info.json

@@ -13,6 +13,9 @@
       {"pin_a": "D0", "pin_b": "D2"}
     ]
   },
+  "rgblight": {
+    "led_count": 5
+  },
   "ws2812": {
     "pin": "C7"
   },