Sitecore - Delete current version from an Item using Workflow Action

Current Environment: Sitecore 7.2 rev 140526

Requirement:

• Need to remove the selected language from the item.
• Need to remove it using the Sitecore Workflow Action 

Sitecore Step 1: Create a workflow action within the workflow which is set to that item template.

Create a workflow. (I used the default sample workflow).
You can find how to create the workflow action in sitecore cookbook: http://sdn.sitecore.net/upload/sitecore6/workflow_cookbook_a4.pdf. 

Sitecore Step 2: Provide Type String

Select the created workflow action.

In the Type String field provide the following details.

namespace.class_name, dll_name 

Do the following code for the class (.dll)

Coding:

     public class DeveleVersion

    {

        public void Process(WorkflowPipelineArgs args)

        {

            Item item = args.DataItem;

            

            Database db = Sitecore.Context.ContentDatabase;

            if (db == null || item == null) return;

            if (item.Versions.Count <= 0) return;

            using (new Sitecore.SecurityModel.SecurityDisabler())

            {

                item.Versions.RemoveVersion();

            }

            args.AbortPipeline();

        }

    }