How to remove the Approve, Reject action buttons from Invoice approval Email notification

 Hi,

We are on 11.5.10.2 and have setup the invoice approval workflow. Upon 'Initiate Approval' an email notification goes to the approver. The email notification has the approve, reject, request more information buttons in the email body. We want to remove these buttons from email body so the approver is forced to login to the application so they can view the attachments (like scanned copy of the invoice).

I've tried to do this through workflow builder but in that if you do any thing to the approval lookup tied to the request approver message that applies both to the email notification and workflow worklist notification in the application, therefore that doesn't work.