As of b05a745cd74, the "flags" integer passed as part of an OP_QUERY message is no longer stored as a bit vector, but is parsed to a LiteParsedQuery::Options struct. However, this bit vector is still used in several places (notably, in ClientCursor). As advance work for transitioning from the OP_QUERY wire protocol message to the find command, we should remove any remaining uses of this bit vector.