Summary: This data was migrated by D6977 and is now obsolete. I'll hold this patch for a week or two in case we get reports of migration errors.
Test Plan: Ran storage upgrade, saw the table vanish. Grepped for references to the table.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D6997
