You can stop those 2 tabs from showing in the metadata pane by adjusting the users' attributes. Unfortunately, this is a user-specific setting and can't be controlled at the group level.
A user can stop those tabs from showing when logged into the desktop client by going into the Tools>Options menu, then navigating to the View>Layout page and unchecking the "Document Links" and "Version History" boxes.
As an administrator, you can make the same change behind the scenes by logging into the Admin Console, opening the properties for that user, navigating to the "Attributes" tab, then adding the following 2 attributes:
[DocFrame]ShowLinksTab
[DocFrame]ShowVersionHistoryTab
...and setting the value to "No" for both attributes (if the attributes already exist, you can change the values from "Yes" to "No" by modifying that attribute).
** NOTE: this change may not take full effect until the user logs out and back in **
The downsides to this are:
1) As stated, this must be done individually for each user
2) This does not "disable" those tabs, it only hides them from display. So, if the user is familiar with going into their Tools>Options menu, they can simply go re-check those boxes if they really wanted to see those tabs again