Revert "Basic thread-safeness in the SSH client"
Revert "Basic thread-safeness in the SSH client"

This reverts commit 42272ffdb1541cf96f13466446e07c24d8e7febb.

Change-Id: Ie00d75579231873db98bc3a84caef408152f3d81

gferon/pygerrit2,markon/pygerrit2,morucci/pygerrit,benjiii/pygerrit,dpursehouse/pygerrit,dpursehouse/pygerrit2,sonyxperiadev/pygerrit