Deletion of line item from purchase requisition

Hi Gurus

There is one unwanted unreleased purchase requisition triggered in reference of maintenance order mistakenly. In order to remove this PR from ME5a list (for procurement ) it was decided to delete line item from purchase requisition but deletion icon of bucket is appearing suppressed in change mode. Then said item was blocked in PR but still its appearing in ME5a list creating confusion for purchase department

Need your suggestion how to delete the line item from PR so that it should not be visible in ME5A list output

Regards

SG