Yammer and onedrive questions!

Question

We all know microsoft is not going to develop the social stuff anymore on SharePoint, direction moving forward is use yammer, so I have a few questions:

1. If a person leaves the company and he has a yammer account, how can we have control and delete that account?
2. Apparently management doesn't want to have onedrive, because they already use My Documents, and they back up each device my documents folder on a daily basis, is it possible to disable onedrive?

Answer 1

I'm not sure if one can actually disable/remove OneDrive integration in SP2013, but you could at least remove the link, as mentioned here and for your convenience:

If it is really just about hiding, than you can achieve this with CSS.

    #suiteLinksBox ul.ms-core-suiteLinkList>li:nth-child(2) { display : none }