Summary: Ref T1191. Notable: - Drops a very old saved query table. See comments inline: plan was to remove it after a year. It's been ~a year and two weeks. - This has our only fulltext index. I'm not supporting that formally for now, but left a note. - This has our only MyISAM table. I'm not supporting that explicitly for now, but it shouldn't affect anything. I may deal with this in the future. - These tables don't actually write directly via Lisk, so there's some fiddling to get the schemata right. Test Plan: Down to ~250 warnings. No more surplus databases or tables. Reviewers: btrahan Reviewed By: btrahan Subscribers: epriestley Maniphest Tasks: T1191 Differential Revision: https://secure.phabricator.com/D10589