fix failing disableKRSEmail-related test
fix failing disableKRSEmail-related test

Summary:
State left over from a previous test caused this to fail, so we reset
the property which lets this test pass

Reviewers: benchan

Reviewed By: benchan

Subscribers: ben

Differential Revision: https://phabricator.bitgo.com/D2841

BitGo/key-recovery-service,BitGo/key-recovery-service