Deprecate and remove the Toil in-workflow autoscaler

[unito-bot]

We should deprecate and remove the Toil in-workflow autoscaler, in favor of Toil-managed Kubernetes clusters with the Kubernetes autoscaler.

┆Issue is synchronized with this Jira Story ┆Epic: jira:ucsc-cgl.atlassian.net:33260 ┆Issue Number: TOIL-1413