anchorless_list: Drop deprecated use of std::iterator
anchorless_list: Drop deprecated use of std::iterator

duarten/scylla,scylladb/scylla,avikivity/scylla,scylladb/scylla,scylladb/scylla,avikivity/scylla,scylladb/scylla,duarten/scylla,duarten/scylla,avikivity/scylla