Leave Workflow - Delete escalated workitem from Universal Worklist

Hello,

Regarding HR's Leave Workflow on Enterprise Portal

Scenario - The leave request is escalated from Approver1 (Boss) to Approver2 (SuperBoss) after a certain time limit - This was achieved using Deadline monitoring ("Process Control : Set to Obsloete")

Problem - However, The request still shows as 'Pending for approval' in the Universal Worklist of Approver1(Boss).

The Approver1(Boss) is still able to process this request, although it has been escalated to Approver2 (SuperBoss)

Ideally,on escalation, the request should have deleted from the Universal Worklist (Enterprise Portal) of Approver1 (Boss).

Any solutions .. We have modelled our own Workflow on 20000081