Remove matrix size defines (#19581)

keyboards/kprepublic/jj40/config.h

@@ -15,9 +15,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #pragma once
 
 
-/* matrix size */
-#define MATRIX_ROWS 4
-#define MATRIX_COLS 12
 #define MATRIX_ROW_PINS { B0, B1, B3, B4 }
 #define MATRIX_COL_PINS { C4, C5, C6, C7, A4, A5, A6, A7, A3, A2, A1, A0 }