Revert "Allocate pseudo tty for ssh"

Reason: extra error messages when running "onos-test"
Pseudo-terminal will not be allocated because stdin is not a terminal.


This reverts commit 6ac0d554b020290daa7af6f8e25d27b8b61a9eb5.

Change-Id: I509b9e9dc941e1e7d281457693b1b74a5eb621e3
4 files changed