Remove NetApp extensions from VCSA 6.7U1

Hi,

I upgraded my VCSA from 6.7 to 6.7U1. I did not unregister the NetApp extensions before the upgrade. So now it's on 6.7 and I want to remove these NetApp extensions because I am going to install the latest VSC/Snapcenter that are compatible with VCSA 6.7U1. I went to Plug-in Extension manager and unregistered all NetApp extensions but the vSphere Web Client still shows them even though they are greyed out. Am I missing something? How do I remove them permanently?

Thanks