Copter: remove unused desired_climb_rate variable

ArduCopter/Attitude.cpp

@@ -209,9 +209,6 @@ float Copter::get_pilot_desired_climb_rate(float throttle_control)
         desired_rate = 0.0f;
     }
 
-    // desired climb rate for logging
-    desired_climb_rate = desired_rate;
-
     return desired_rate;
 }
 

ArduCopter/Copter.cpp

@@ -44,7 +44,6 @@ Copter::Copter(void) :
     super_simple_cos_yaw(1.0),
     super_simple_sin_yaw(0.0f),
     initial_armed_bearing(0),
-    desired_climb_rate(0),
     loiter_time_max(0),
     loiter_time(0),
 #if FRSKY_TELEM_ENABLED == ENABLED

ArduCopter/Copter.h

@@ -402,9 +402,6 @@ private:
     // Stores initial bearing when armed - initial simple bearing is modified in super simple mode so not suitable
     int32_t initial_armed_bearing;
 
-    // Throttle variables
-    int16_t desired_climb_rate;          // pilot desired climb rate - for logging purposes only
-
     // Loiter control
     uint16_t loiter_time_max;                // How long we should stay in Loiter Mode for mission scripting (time in seconds)
     uint32_t loiter_time;                    // How long have we been loitering - The start time in millis

ArduCopter/control_land.cpp

@@ -203,9 +203,6 @@ void Copter::land_run_vertical_control(bool pause_descent)
         }
     }
 
-    // record desired climb rate for logging
-    desired_climb_rate = cmb_rate;
-
     // update altitude target and call position controller
     pos_control->set_alt_target_from_climb_rate_ff(cmb_rate, G_Dt, true);
     pos_control->update_z_controller();