Deleted the non-working marshalling interface and the option for it.

Signed-off-by: Dimitar Dobrev <dpldobrev@protonmail.com>

src/Generator/Generators/CSharp/CSharpSources.cs

@@ -489,11 +489,6 @@ namespace CppSharp.Generators.CSharp
                     PopBlock(NewLineKind.BeforeNextBlock);
                 }
 
-                if (Options.GenerateClassMarshals)
-                {
-                    GenerateClassMarshals(@class);
-                }
-
                 GenerateClassConstructors(@class);
 
                 GenerateClassMethods(@class.Methods);
@@ -511,25 +506,6 @@ namespace CppSharp.Generators.CSharp
                 Context.TypeMaps.TypeMaps.Add(@class.Name, typeMap);
         }
 
-        private void GenerateClassMarshals(Class @class)
-        {
-            WriteLine("int CppSharp.Runtime.ICppMarshal.NativeDataSize");
-            WriteStartBraceIndent();
-            WriteLine("get {{ return {0}; }}", @class.Layout.DataSize);
-            WriteCloseBraceIndent();
-            NewLine();
-
-            WriteLine("void CppSharp.Runtime.ICppMarshal.MarshalManagedToNative(global::System.IntPtr instance)");
-            WriteStartBraceIndent();
-            WriteCloseBraceIndent();
-            NewLine();
-
-            WriteLine("void CppSharp.Runtime.ICppMarshal.MarshalNativeToManaged(global::System.IntPtr instance)");
-            WriteStartBraceIndent();
-            WriteCloseBraceIndent();
-            NewLine();
-        }
-
         private void GenerateInterface(Class @class)
         {
             if (!@class.IsGenerated || @class.IsIncomplete)
@@ -744,11 +720,6 @@ namespace CppSharp.Generators.CSharp
             {
                 if (@class.IsRefType)
                     bases.Add("IDisposable");
-
-                if (Options.GenerateClassMarshals)
-                {
-                    bases.Add("CppSharp.Runtime.ICppMarshal");
-                }
             }
 
             if (bases.Count > 0 && !@class.IsStatic)

src/Generator/Options.cs

@@ -17,7 +17,6 @@ namespace CppSharp
             Modules = new List<Module> { SystemModule };
 
             GeneratorKind = GeneratorKind.CSharp;
-            GenerateClassMarshals = false;
             OutputInteropIncludes = true;
             CommentPrefix = "///";
 
@@ -87,7 +86,6 @@ namespace CppSharp
         public bool OutputInteropIncludes;
         public bool GenerateFunctionTemplates;
         public bool GenerateInternalImports;
-        public bool GenerateClassMarshals;
         public bool UseHeaderDirectories;
 
         /// <summary>