Open iFile and go to var/mobile/applications/(whatever app), and delete the iTunes metadata file. Open the app store again, and the update will be gone.
Open iFile and go to var/mobile/applications/(whatever app), and delete the iTunes metadata file. Open the app store again, and the update will be gone.
What if you want to update it later? If you ever plan on updating that app again can you just move that file to a safe place and then when you want to update the app, you copy it back? Or is it easier to just delete the app and then install it again?