remove deprecated loop_count variable

Firmware/MotorControl/axis.hpp

@@ -187,7 +187,6 @@ public:
     AxisState requested_state_ = AXIS_STATE_STARTUP_SEQUENCE;
     std::array<AxisState, 10> task_chain_ = { AXIS_STATE_UNDEFINED };
     AxisState& current_state_ = task_chain_.front();
-    uint32_t loop_counter_ = 0;
     Homing_t homing_;
     CAN_t can_;
 

Firmware/odrive-interface.yaml

@@ -407,7 +407,6 @@ interfaces:
       last_drv_fault: readonly uint32
       current_state: readonly AxisState
       requested_state: AxisState
-      loop_counter: readonly uint32
       is_homed: {type: bool, c_name: homing_.is_homed}
       config:
         c_is_class: False

tools/odrive/utils.py

@@ -324,7 +324,7 @@ def rate_test(device):
     numFrames = 10000
     vals = []
     for _ in range(numFrames):
-        vals.append(device.axis0.loop_counter)
+        vals.append(device.n_evt_control_loop)
 
     loopsPerFrame = (vals[-1] - vals[0])/numFrames
     loopsPerSec = (168000000/(6*3500))