Remove usage of stty if not needed

using stty commands in an non interactive terminal will cause errors to be thrown like this 

'stty: standard input: Invalid argument'

When using Rye as part of automated scripts that are run by a non interactive shell (like jenkins for example), and on a lot of hosts - this gets very messy and fills the output with noise.

I don't see the variable storing the result of this stty command being used anywhere - so I'm proposing its removal.