Hi Pradeep,
Yes You can,
User the ABAP Program RDDIT076.
1) Goto SE38 --> RDDIT076 --> Give TR # --> Execute.
2) Double click of Request No...
3) You will find the popup.
4) Click on Edit Button
5) Change the status from R ( Released) to D ( Modified)
6) Goto SE01 and edit request and remove the Mutiprovider.
Hope this helps you.
Thanks,
Chandresh