[Keyboard] Convert ergoinu to SPLIT_KEYBOARD (#15305)

keyboards/dm9records/ergoinu/ergoinu.h

@@ -19,10 +19,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include "quantum.h"
 
-#ifdef RGBLIGHT_ENABLE
-#include "ws2812.h"
-#endif
-
 #define LAYOUT( \
   L00, L01, L02, L03, L04, L05, L06, R00, R01, R02, R03, R04, R05, R06, \
   L07, L08, L09, L10, L11, L12, L13, R07, R08, R09, R10, R11, R12, R13, \
@@ -41,4 +37,3 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
     { R27, R26, R25, R24, R23, R22, R21 }, \
     { KC_NO, KC_NO, R32, R31, R30, R29, R28 } \
   }
-