v0.2.55..v0.2.56 changeset BuildingOutlineRemoveOp.h

diff --git a/hoot-core/src/main/cpp/hoot/core/ops/BuildingOutlineRemoveOp.h b/hoot-core/src/main/cpp/hoot/core/ops/BuildingOutlineRemoveOp.h
index 214f976..38adca3 100644
--- a/hoot-core/src/main/cpp/hoot/core/ops/BuildingOutlineRemoveOp.h
+++ b/hoot-core/src/main/cpp/hoot/core/ops/BuildingOutlineRemoveOp.h
@@ -49,7 +49,8 @@ public:
 
   static std::string className() { return "hoot::BuildingOutlineRemoveOp"; }
 
-  BuildingOutlineRemoveOp();
+  BuildingOutlineRemoveOp() = default;
+  virtual ~BuildingOutlineRemoveOp() = default;
 
   virtual void apply(std::shared_ptr<OsmMap>& map) override;