storage_service: Fix MOVED_NODE client event (CASSANDRA-8516)
storage_service: Fix MOVED_NODE client event (CASSANDRA-8516)

Backport from:

b296c55f956c6ef07c8330dc28ef8c351e5bcfe2 (Fix MOVED_NODE client event)

Fixes:

DISABLE_VNODES=true nosetests
pushed_notifications_test.py:TestPushedNotifications.move_single_node_test

raphaelsc/scylla,raphaelsc/scylla,avikivity/scylla,avikivity/scylla,avikivity/scylla,kjniemi/scylla,duarten/scylla,kjniemi/scylla,raphaelsc/scylla,duarten/scylla,scylladb/scylla,scylladb/scylla,duarten/scylla,scylladb/scylla,scylladb/scylla,kjniemi/scylla