To remove the unwanted plug-ins from the Available Plug-ins list:
In a web browser, navigate to http://vcenter server name or IP/mob.
Where vcenter server name or IP is the name of your vCenter Server or its IP address.Click Content.
Click ExtensionManager.
Select and copy the name of the plug-in you want to remove from the list of values under Properties. For a list of default plug-ins, see the Additional Information section of this article.
Click UnregisterExtension. A new window appears.
Paste the name of the plug-in and click Invoke Method. This removes the plug-in.
Close the window.
Refresh the Managed Object Type:ManagedObjectReference:ExtensionManager window to verify if the plug-in is removed successfully.
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