deregister tap names after using them for building replicas
deregister tap names after using them for building replicas

Change-Id: Ica75699760f9c0a73216d80fea7c5353e5384eb4
Reviewed-on: http://review.couchbase.org/14194
Reviewed-by: Aliaksey Kandratsenka <340b8e09ca65cd3fc686427fcfed17e87eaf61e2@gmail.com>
Tested-by: Aliaksey Kandratsenka <340b8e09ca65cd3fc686427fcfed17e87eaf61e2@gmail.com>

mschoch/ns_server,mschoch/ns_server,mschoch/ns_server,membase/ns_server,daverigby/ns_server,mschoch/ns_server,membase/ns_server,ceejatec/ns_server,nimishzynga/ns_server,pavel-blagodov/ns_server,vzasade/ns_server,t3rm1n4l/ns_server,membase/ns_server,daverigby/ns_server,nimishzynga/ns_server,vzasade/ns_server,vzasade/ns_server,t3rm1n4l/ns_server,pavel-blagodov/ns_server,t3rm1n4l/ns_server,t3rm1n4l/ns_server,mschoch/ns_server,mschoch/ns_server,ceejatec/ns_server,membase/ns_server,ceejatec/ns_server,membase/ns_server,nimishzynga/ns_server,vzasade/ns_server,daverigby/ns_server,nimishzynga/ns_server,t3rm1n4l/ns_server,pavel-blagodov/ns_server,daverigby/ns_server,nimishzynga/ns_server,ceejatec/ns_server,nimishzynga/ns_server,membase/ns_server,ceejatec/ns_server,daverigby/ns_server,ceejatec/ns_server,pavel-blagodov/ns_server