Fix missing members and do some small refactorings.

code/AssetLib/FBX/FBXModel.cpp

@@ -4,7 +4,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2022, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -76,10 +75,6 @@ Model::Model(uint64_t id, const Element &element, const Document &doc, const std
     ResolveLinks(element, doc);
 }
 
-// ------------------------------------------------------------------------------------------------
-Model::~Model() {
-}
-
 // ------------------------------------------------------------------------------------------------
 void Model::ResolveLinks(const Element&, const Document &doc) {
     const char *const arr[] = { "Geometry", "Material", "NodeAttribute" };