Remove unneeded call to erlang:set_cookie.
Remove unneeded call to erlang:set_cookie.

The call to erlang:set_cookie after ns_cookie_manager:cookie_sync has no effect.

Change-Id: I8824ef4a1ceaadeef98811a45b15503c6ae53805
Reviewed-on: http://review.couchbase.org/8020
Reviewed-by: Aliaksey Kandratsenka <340b8e09ca65cd3fc686427fcfed17e87eaf61e2@gmail.com>
Tested-by: Aliaksey Kandratsenka <340b8e09ca65cd3fc686427fcfed17e87eaf61e2@gmail.com>

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