Rebalance failures with timeouts related to DEREGISTER_TAP_CLIENT

Build : 3.0.0-432-rel http://builds.hq.northscale.net/latestbuilds/couchbase-server-enterprise_x86_64_3.0.0-432-rel.rpm.manifest.xml

Rebalance exited with reason {{{badmatch,[

{<19191.10431.2>,noproc}

]},
[

{misc,sync_shutdown_many_i_am_trapping_exits, 1}

,

{misc,try_with_maybe_ignorant_after,2}

,

{gen_server,terminate,6}

,

{proc_lib,init_p_do_apply,3}

]},
{gen_server,call,
[<0.255.24>,

{shutdown_replicator,'ns_1@172.23.106.25'}

,
infinity]}}

Opening a new bug, since the timeouts are different from the previous ones reported on MB-10398.

Logs attached.