clean up permission calls for grants_rights?

refs: CNVS-11425

Change-Id: Ia0145e4b4d1da9e0f83a1845647ce203b3586057
Reviewed-on: https://gerrit.instructure.com/34280
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Cody Cutrer <cody@instructure.com>
Product-Review: Cody Cutrer <cody@instructure.com>
QA-Review: Cody Cutrer <cody@instructure.com>