raft: replication test: remove unused tick_all
raft: replication test: remove unused tick_all

Tests now wait for normal ticks for election, remove deprecated tick_all
helper.

Signed-off-by: Alejo Sanchez <004be06a28e38b437b038f9b5c0b9f5758b792e9@scylladb.com>

scylladb/scylla,scylladb/scylla,scylladb/scylla,scylladb/scylla