spec: comment out fragile spec temporarily

Change-Id: Ie81a1afb0d043bdbcd253a6434bf806e2e8ac165
Reviewed-on: https://gerrit.instructure.com/29153
Tested-by: Jenkins <jenkins@instructure.com>
Product-Review: Bryan Madsen <bryan@instructure.com>
Reviewed-by: Bryan Madsen <bryan@instructure.com>
QA-Review: Bryan Madsen <bryan@instructure.com>