Remove matrix size defines (#19581)

keyboards/mtbkeys/mtb60/hotswap/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 15
-
 /* key matrix pinout */
 #define MATRIX_ROW_PINS { D6, D7, B4, B5, D5 }
 #define MATRIX_COL_PINS { D0, D1, D2, D3, B7, B6, F7, C6, C7, F6, F4, F1, F0, F5, E6 }