Remove matrix size defines (#19581)

keyboards/keebio/bfo9000/config.h

@@ -19,11 +19,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #pragma once
 
 
-/* key matrix size */
-// Rows are doubled-up
-#define MATRIX_ROWS 12
-#define MATRIX_COLS 9
-
 // wiring of each half
 #define MATRIX_ROW_PINS { D3, D2, D4, C6, D7, E6 }
 #define MATRIX_COL_PINS { B5, B6, B2, B3, B1, F7, F6, F5, F4 }