Revert "Allow dispatcher queue size ratio to be configured"
This reverts commit 0977136774.
Revert "Allow configurable min/max limits for dispatcher threads"
This reverts commit c2672df930.
Revert "Close ssh sessions and clear ssh session cache after strand run"
This reverts commit bf0c22cd1c.
Revert "Use a maximum of 15 worker threads for respirate"
This reverts commit 43246aaa08.
Revert "Select schedule in dispatcher scan query in addition to id"
This reverts commit 1eca3c01b6.
Reapply "Revert dispatcher rewrite"
This reverts commit 46e403c0d8.
c5c3e0cb5b