Remove unused MATRIX_HAS_GHOST from config.h (#19726)

keyboards/evyd13/wasdat_code/config.h

@@ -71,9 +71,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 /* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
 #define DEBOUNCE 5
 
-/* define if matrix has ghost (lacks anti-ghosting diodes) */
-//#define MATRIX_HAS_GHOST
-
 /* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
 #define LOCKING_SUPPORT_ENABLE
 /* Locking resynchronize hack */