Copter: fix compile error when logging disabled

Also slightly re-order placement of functions

ArduCopter/Log.cpp

@@ -976,11 +976,12 @@ void Copter::Log_Write_Baro(void) {}
 void Copter::Log_Write_Parameter_Tuning(uint8_t param, float tuning_val, int16_t control_in, int16_t tune_low, int16_t tune_high) {}
 void Copter::Log_Write_Home_And_Origin() {}
 void Copter::Log_Sensor_Health() {}
+void Copter::Log_Write_Precland() {}
 void Copter::Log_Write_GuidedTarget(uint8_t target_type, const Vector3f& pos_target, const Vector3f& vel_target) {}
+void Copter::Log_Write_Throw(ThrowModeStage stage, float velocity, float velocity_z, float accel, float ef_accel_z, bool throw_detect, bool attitude_ok, bool height_ok, bool pos_ok) {}
 void Copter::Log_Write_Proximity() {}
 void Copter::Log_Write_Beacon() {}
-void Copter::Log_Write_Precland() {}
-void Copter::Log_Write_Throw(ThrowModeStage stage, float velocity, float velocity_z, float accel, float ef_accel_z, bool throw_detect, bool attitude_ok, bool height_ok, bool pos_ok) {}
+void Copter::Log_Write_Vehicle_Startup_Messages() {}
 
 #if FRAME_CONFIG == HELI_FRAME
 void Copter::Log_Write_Heli() {}