remove unused View::Clone method

Signed-off-by: Ashton Larkin <[email protected]>

include/ignition/gazebo/detail/BaseView.hh

@@ -188,8 +188,6 @@ class IGNITION_GAZEBO_VISIBLE BaseView
  /// \sa ToAddEntities
  public: void ClearToAddEntities();
 
- public: virtual std::unique_ptr<BaseView> Clone() const = 0;
-
  // TODO(adlarkin) make this a std::unordered_set for better performance.
  // We need to make sure nothing else depends on the ordered preserved by
  // std::set first

include/ignition/gazebo/detail/View.hh

@@ -106,8 +106,6 @@ class View : public BaseView
  /// \brief Documentation inherited
  public: void Reset() override;
 
- public: std::unique_ptr<BaseView> Clone() const override;
-
  /// \brief A map of entities to their component data. Since tuples are defined
  /// at compile time, we need separate containers that have tuples for both
  /// non-const and const component pointers (calls to ECM::Each can have a
@@ -332,13 +330,6 @@ void View<ComponentTypeTs...>::Reset()
  this->invalidConstData.clear();
  this->missingCompTracker.clear();
 }
-
-//////////////////////////////////////////////////
-template<typename ...ComponentTypeTs>
-std::unique_ptr<BaseView> View<ComponentTypeTs...>::Clone() const
-{
- return std::make_unique<View<ComponentTypeTs...>>(*this);
-}
 } // namespace detail
 } // namespace IGNITION_GAZEBO_VERSION_NAMESPACE
 } // namespace gazebo