remove unused code

src/AddIns/Debugger/Debugger.AddIn/Pads/ClassBrowserSupport.cs

@@ -185,7 +185,6 @@ namespace ICSharpCode.SharpDevelop.Gui.Pads
 		
 		static IAssemblyModel CreateAssemblyModel(Module module)
 		{
-			// references??
 			IEntityModelContext context = new DebuggerProcessEntityModelContext(module.Process, module);
 			IUpdateableAssemblyModel model = SD.GetRequiredService<IModelFactory>().CreateAssemblyModel(context);
 			var types = module.Assembly.TopLevelTypeDefinitions.SelectMany(td => td.Parts).ToList();

src/Libraries/NRefactory/ICSharpCode.NRefactory.CSharp/Ast/AstNode.cs

@@ -415,7 +415,7 @@ namespace ICSharpCode.NRefactory.CSharp
 			AddChildUnsafe (child, role);
 		}
 		
-		public void AddChildWithExistingRole<T> (T child) where T : AstNode
+		public void AddChildWithExistingRole (AstNode child)
 		{
 			if (child == null || child.IsNull)
 				return;

src/Libraries/NRefactory/ICSharpCode.NRefactory.CSharp/OutputVisitor/InsertRequiredSpacesDecorator.cs

@@ -115,16 +115,6 @@ namespace ICSharpCode.NRefactory.CSharp
 			lastWritten = LastWritten.Whitespace;
 		}
 		
-		public void Indent()
-		{
-			throw new NotImplementedException();
-		}
-		
-		public void Unindent()
-		{
-			throw new NotImplementedException();
-		}
-		
 		public override void NewLine()
 		{
 			base.NewLine();