This question has been asked before and a search of the forum will show you that the answer you have received here are correct. We have no control over who links to our blogs in their blogrolls. We may not be associated with the blogs that do this at all. Moreover, if we blog on controversial subjects others we ought to become aware that they are free to link back to our posts and share their opinions of our post content with their readers.
Not long ago a man who insulted others and then had his blog linked to came to this forum seeking such a link removal solution. It isn't possible, unless the party doing the linking agrees to remove the link to the blog. So if that's what you want you will have to approach the blogger who linked to your blog and ask for link removal yourself.