When a user sets zuul_console_disabled, we don't need to try to
connect to the streaming daemon. In fact, they may have set it
because they know it won't be running. Check for this and avoid
the connection step in that case and therefore avoid the extraneous
"Waiting on logger" messages and extra 30 second delay at the end
of each task.
Change-Id: I86af231f1ca1c5b54b21daae29387a8798190a58
James E. Blair
70077ee6d5