Merge pull request mantidproject#36952 from robertapplin/0-remove-unr…

…equired-dllexport

Remove unnecessary DLLExport from anonymous namespace struct

Framework/PythonInterface/mantid/api/src/Exports/IFunction.cpp

@@ -51,7 +51,7 @@ template <typename T> inline T extractValueAndClone(const boost::python::object
   return boost::python::extract<T>(value)()->clone();
 }
 
-struct DLLExport FunctionPropertyValueHandler : public PropertyValueHandler {
+struct FunctionPropertyValueHandler : public PropertyValueHandler {
 
   /// Type required by TypeRegistry framework
   using HeldType = std::shared_ptr<IFunction>;