spec: fix ordering issue in feature flag delete action

Change-Id: Iafd8faa3d740154bc76597cf1d9937d865e7f34a
Reviewed-on: https://gerrit.instructure.com/28846
Tested-by: Bryan Madsen <bryan@instructure.com>
Reviewed-by: Bryan Madsen <bryan@instructure.com>
QA-Review: Bryan Madsen <bryan@instructure.com>
Product-Review: Bryan Madsen <bryan@instructure.com>