Help!! clearing links to other workbook /Sheets

I've copied several sheets from other from other excel workbook that i've created before, to complete another new workbook.

Everytime I start excel an open this new workbook, I get the message that excel has found other links to other workbooks, and if I want to restore those links or not.

I dont want to restore the links , and I dont want to get that message anymore.
I've already seen that in the submenu Edit, you can find the origin of the links. ( there you can restore or edit them), but is'nt there anyway to delete thos links. Please help.