Remove matrix size defines (#19581)

keyboards/handwired/stef9998/split_5x7/rev1/config.h

@@ -18,11 +18,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #pragma once
 
 
-/* key matrix size */
-// Rows are doubled-up
-#define MATRIX_ROWS 10
-#define MATRIX_COLS 7
-
 // wiring of each half
 #define MATRIX_ROW_PINS { C6, D7, E6, B4, B5 }
 #define MATRIX_COL_PINS { B2, B6, B1, B3, F7, F5, F6 }