Remove matrix size defines (#19581)

keyboards/kprepublic/jj4x4/config.h

@@ -18,9 +18,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #pragma once
 
 
-/* matrix size */
-#define MATRIX_ROWS 4
-#define MATRIX_COLS 4
 #define MATRIX_ROW_PINS { B5, B0, B3, B4 }
 #define MATRIX_COL_PINS { A1, A0, A2, A3 }