AP_Proximity: Fix comments

libraries/AP_Proximity/AP_Proximity.h

@@ -111,7 +111,7 @@ public:
     //   returns true on success, false if no valid readings
     bool get_closest_object(float& angle_deg, float &distance) const;
 
-    // get number of objects, angle and distance - used for non-GPS avoidance
+    // get number of objects
     uint8_t get_object_count() const;
     bool get_object_angle_and_distance(uint8_t object_number, float& angle_deg, float &distance) const;
 

libraries/AP_Proximity/AP_Proximity_Boundary_3D.h

@@ -117,7 +117,7 @@ public:
     //   returns true on success, false if no valid readings
     bool get_closest_object(float& angle_deg, float &distance) const;
 
-    // get number of objects, angle and distance - used for non-GPS avoidance
+    // get number of objects horizontally
     uint8_t get_horizontal_object_count() const;
     bool get_horizontal_object_angle_and_distance(uint8_t object_number, float& angle_deg, float &distance) const;