Plane: use AP_TUNING_ENABLED

ArduPlane/Parameters.cpp

@@ -800,9 +800,11 @@ const AP_Param::Info Plane::var_info[] = {
     GOBJECT(quadplane,           "Q_", QuadPlane),
 #endif
 
+#if AP_TUNING_ENABLED
     // @Group: TUNE_
     // @Path: tuning.cpp,../libraries/AP_Tuning/AP_Tuning.cpp
     GOBJECT(tuning,           "TUNE_", AP_Tuning_Plane),
+#endif
 
 #if HAL_QUADPLANE_ENABLED
     // @Group: Q_A_

ArduPlane/tuning.cpp

@@ -1,3 +1,7 @@
+#include <AP_Tuning/AP_Tuning_config.h>
+
+#if AP_TUNING_ENABLED
+
 #include "Plane.h"
 
 /*
@@ -305,3 +309,4 @@ void AP_Tuning_Plane::reload_value(uint8_t parm)
     }
 }
 
+#endif  // AP_TUNING_ENABLED

ArduPlane/tuning.h

@@ -1,3 +1,9 @@
+#pragma once
+
+#include <AP_Tuning/AP_Tuning_config.h>
+
+#if AP_TUNING_ENABLED
+
 #include <AP_Tuning/AP_Tuning.h>
 
 /*
@@ -108,3 +114,5 @@ private:
     // mask of what params have been set
     uint64_t have_set;
 };
+
+#endif  // AP_TUNING_ENABLED