Remove matrix size defines (#19581)

keyboards/amjkeyboard/amj66/config.h

@@ -18,10 +18,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #pragma once
 
 
-/* Key matrix size */
-#define MATRIX_ROWS 5
-#define MATRIX_COLS 16
-
 /* Keyboard Matrix Assignments */
 #define MATRIX_ROW_PINS { F7, F6, F5, F4, F1 }
 #define MATRIX_COL_PINS { F0, B3, B2, B1, B0, B7, D0, D1, D2, D3, D5, D6, D7, B4, B5, B6 }