now that we have SIGHUP, we were changing everything to it anyway,
so just let caching in-proc be the default
Change-Id: Id1b44722522ac9693b17695da7107c99a359d5ac
Reviewed-on: https://gerrit.instructure.com/25020
Reviewed-by: Cody Cutrer <cody@instructure.com>
Product-Review: Cody Cutrer <cody@instructure.com>
QA-Review: Cody Cutrer <cody@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>