Copter: Remove unneeded GCS rally override

ArduCopter/GCS_Mavlink.cpp

@@ -1498,15 +1498,6 @@ MAV_RESULT GCS_MAVLINK_Copter::handle_flight_termination(const mavlink_command_l
     return result;
 }
 
-AP_Rally *GCS_MAVLINK_Copter::get_rally() const
-{
-#if AC_RALLY == ENABLED
-    return &copter.rally;
-#else
-    return nullptr;
-#endif
-}
-
 bool GCS_MAVLINK_Copter::set_mode(const uint8_t mode)
 {
 #ifdef DISALLOW_GCS_MODE_CHANGE_DURING_RC_FAILSAFE

ArduCopter/GCS_Mavlink.h

@@ -14,7 +14,6 @@ protected:
 
     uint32_t telem_delay() const override;
 
-    AP_Rally *get_rally() const override;
     MAV_RESULT handle_flight_termination(const mavlink_command_long_t &packet) override;
     AP_AdvancedFailsafe *get_advanced_failsafe() const override;
     AP_VisualOdom *get_visual_odom() const override;