Bug 1007709 - [Dialer][Call Screen] Create fluid size for contact name in the upper information panel

Are these all actually necessary anymore? I think we can make use of this: https://github.com/mozilla-b2g/gaia/pull/19918/files#diff-a7fdcd5512321333c1aeaecb37d9ef44R137

But I'm not sure if the styles are shared in the same situations.