Revert "Cache user role lookup in memory during request"
Revert "Cache user role lookup in memory during request"

This reverts commit b8cd2eacf2792257a15b8eefe26bc1aa1daf7373.

dimagi/commcare-hq,qedsoftware/commcare-hq,qedsoftware/commcare-hq,qedsoftware/commcare-hq,qedsoftware/commcare-hq,dimagi/commcare-hq,qedsoftware/commcare-hq,dimagi/commcare-hq,dimagi/commcare-hq,dimagi/commcare-hq