How to delete plant-specific configuration in material master MRP3

Hi Guru,

Our client is using variant configuration. We have one material which is configured material and its a final material while creating quotation system will generate characteristics and it will automatically come to our quotation line item description.

I was doing some testing in material master with this material number i have added plant specific configuration with the same material number and clicked on configure variant and configure planning variant. Now the issue is when i'm creating the quotation system is not giving the correct data.

Again i have tried to delete the entries which i made in plant-specific configuration in MRP3 but now its in display mode and couldn't able to delete as well 😔. Can anyone please tell me how to delete that entries?

Please see the screenshot below, which is to be deleted.