Snaptext.live is no longer active

[anon8675309]

Currently, the turnkey scripts say that the user can find the IP address of their Pi at a snaptext.live link, however this site is no longer around. As a user, it is confusing to be pointed to a dead link.

To reduce confusion, the snaptext.live messages should be removed. As the functionality currently does not work, this will not be a loss of any features. Developers integrating turnkey into their projects can use startup.sh to determine the IP address if it needs to be exposed to the user.