[Core] Process all changed keys in one scan loop, deprecate QMK_KEYS_PER_SCAN (#15292)

keyboards/skme/zeno/config.h

@@ -34,6 +34,3 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define LOCKING_SUPPORT_ENABLE
 /* Locking resynchronize hack */
 #define LOCKING_RESYNC_ENABLE
-/*Enable 1khz polling by default*/
-#define USB_POLLING_INTERVAL_MS 1
-#define QMK_KEYS_PER_SCAN 4