I don't understand how to remove iCloud tabs on my iPhone 4s, and iPad 2. If you just leave it will it go away automatically?

I recently got an iPhone 4s and used the same iCloud account I have on my iPad 2. I was watching a video on my iPad 2, and later I was using my iPhone and I noticed it in the iCloud tabs. I know it's very childish to become so upset over it but I really want to delete it from my iCloud tabs but I don't know how. Help!!