Hiding Discover Groups Link in OWA

Good morning,

We are in the final stages of rolling out Office 365 for our organization and my supervisor is wondering if there was a way to hide the Discover Groups link in OWA since we are not at the stage of allowing users to create Office 365 groups. We have previously disabled group creation for all but a select group of users. Is there a way to turn this off or is this on by default in OWA and Outlook? Thank you.