remove superfluous transaction

refs CNVS-7032

Change-Id: I4ba80222d8b733b46538bfb8168f4869f87a2c19
Reviewed-on: https://gerrit.instructure.com/28655
Reviewed-by: Cody Cutrer <cody@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>
QA-Review: Cody Cutrer <cody@instructure.com>
Product-Review: Cody Cutrer <cody@instructure.com>