R1:77af6be803c7

Remove host/path and test plan enable/disable options

Summary: Ref T2222. These no longer have an effect, and are obsoleted by `differential.fields`.

Test Plan: `grep`

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T2222

Differential Revision: https://secure.phabricator.com/D8468