Remove Dispose in CodeExplorerVM as Dispose is called correctly in the commands.

Author: Hosch250

RetailCoder.VBE/Navigation/CodeExplorer/CodeExplorerViewModel.cs

@@ -15,7 +15,7 @@
 
 namespace Rubberduck.Navigation.CodeExplorer
 {
-    public class CodeExplorerViewModel : ViewModelBase, IDisposable
+    public class CodeExplorerViewModel : ViewModelBase
     {
         private readonly FolderHelper _folderHelper;
         private readonly RubberduckParserState _state;
@@ -362,16 +362,5 @@ private void ExecuteRemoveComand(object param)
 
             _externalRemoveCommand.Execute(param);
         }
-
-        public void Dispose()
-        {
-            foreach (var command in _commands)
-            {
-                if (command is IDisposable)
-                {
-                    ((IDisposable) command).Dispose();
-                }
-            }
-        }
     }
 }