Tracker: handle knowledge of in_log_download in DataFlash

AntennaTracker/GCS_Mavlink.cpp

@@ -835,23 +835,6 @@ mission_failed:
         break;
     }
 
-    case MAVLINK_MSG_ID_LOG_REQUEST_DATA:
-        tracker.in_log_download = true;
-        /* no break */
-    case MAVLINK_MSG_ID_LOG_ERASE:
-        /* no break */
-    case MAVLINK_MSG_ID_LOG_REQUEST_LIST:
-        if (!tracker.in_mavlink_delay) {
-            tracker.DataFlash.handle_mavlink_msg(*this, msg);
-        }
-        break;
-    case MAVLINK_MSG_ID_LOG_REQUEST_END:
-        tracker.in_log_download = false;
-        if (!tracker.in_mavlink_delay) {
-            tracker.DataFlash.handle_mavlink_msg(*this, msg);
-        }
-        break;
-
     case MAVLINK_MSG_ID_SERIAL_CONTROL:
         handle_serial_control(msg, tracker.gps);
         break;

AntennaTracker/Tracker.h

@@ -97,8 +97,6 @@ private:
 
     bool usb_connected = false;
 
-    // has a log download started?
-    bool in_log_download = false;
     DataFlash_Class DataFlash;
 
     AP_GPS gps;