Reverted the last change, "test_ssh_handler_raises_on_bad_credentials" passes without it as well.
Reverted the last change, "test_ssh_handler_raises_on_bad_credentials"
passes without it as well.


Former-commit-id: 9a34875aec058be9a0dcf02b1f301cce739038b1
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine