How to delete the row from INItemPlan when releasing receipt via another graph

I have a customization where i have created a material receipt when releasing the document in the release method im creating the inventory receipt document so, it will create a plan id in the INItemPlan table which need to be deleted automatically while releasing the inventory receipt document but, with the code which i have written its not deleting the plan id record. So, in the inventory summary avaliable qty was doubling. can any one suggest me how to delete the record for INItemPlan using the code.When i do a manual receipt and release the document its creating the plan id and deleting the plan id when the receipt is released.

 INReceiptEntry iRe = INReceiptEntry.CreateInstance<INReceiptEntry>();