You can remove your account whenever you want by following these steps:
1. Go to the Audiense side of the platform (if you are not yet there) clicking in the upper right corner on the squares icon:
2. Select Audiense Connect:
3. Go to "My Account" clicking in the setting icon:
4. Click on "Remove account"
If you don't have an added Twitter account you have to do it like this:
1. Click on the setting icon:
2. Go to the second tab "My Account"
3. Click on "Remove account"