Copter: use AP_ServoRelayEvents singleton

ArduCopter/GCS_Mavlink.cpp

@@ -1809,11 +1809,6 @@ AP_Camera *GCS_MAVLINK_Copter::get_camera() const
 #endif
 }
 
-AP_ServoRelayEvents *GCS_MAVLINK_Copter::get_servorelayevents() const
-{
-    return &copter.ServoRelayEvents;
-}
-
 AP_AdvancedFailsafe *GCS_MAVLINK_Copter::get_advanced_failsafe() const
 {
 #if ADVANCED_FAILSAFE == ENABLED

ArduCopter/GCS_Mavlink.h

@@ -22,7 +22,6 @@ protected:
     AP_Rally *get_rally() const override;
     Compass *get_compass() const override;
     AP_Camera *get_camera() const override;
-    AP_ServoRelayEvents *get_servorelayevents() 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;