Remove matrix size defines (#19581)

keyboards/subatomic/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 14
-
 /* Planck PCB default pin-out */
 #define MATRIX_ROW_PINS { D2, D5, B5, B6, D3 }
 #define MATRIX_COL_PINS { F1, F0, B0, C7, F4, F5, F6, F7, D4, D6, B4, D7, C6, C5 }