Do not resend a mission request if it is not the expected sequence number, this can cause an excessive increase of used bandwith (#18082)

src/modules/mavlink/mavlink_mission.cpp

@@ -1017,8 +1017,7 @@ MavlinkMissionManager::handle_mission_item_both(const mavlink_message_t *msg)
 			if (wp.seq != _transfer_seq) {
 				PX4_DEBUG("WPM: MISSION_ITEM ERROR: seq %u was not the expected %u", wp.seq, _transfer_seq);
 
-				/* request next item again */
-				send_mission_request(_transfer_partner_sysid, _transfer_partner_compid, _transfer_seq);
+				/* Item sequence not expected, ignore item */
 				return;
 			}