This is going to be simple Post ,which helps you to understand the step by step procedure to remove the NSX Extension (Network & Security Plugin) from vSphere Web Client or vCenter Server. It may be useful,when you have removed your NSX integration with your vCenter Server and you don’t want the NSX Extension (Network & Security Plugin) appear from vSphere Web Client. This post will guide you the procedure to remove the NSX extension from the vCenter Server.
Remove NSX Extension from vCenter Server:
In a web browser, navigate to http://vCenter_Server_name_or_IP/mob
Click on Content
Select “UnRegisterExtension” under Methods
Enter the extension string com.vmware.vShieldManager and click on Invoke Method