Revert "Revert "Remove prepare_cached() as it's not really used""
Revert "Revert "Remove prepare_cached() as it's not really used""

This reverts commit f48112633291ab06515c51f6bef950e247726d8d.

berkmancenter/mediacloud,berkmancenter/mediacloud,berkmancenter/mediacloud,berkmancenter/mediacloud,berkmancenter/mediacloud