MB-11011: Remove dependency on rtmp library

Change-Id: If1e27dc793f9f99442544930f31c6a8032e9c37a
Reviewed-on: http://review.couchbase.org/36776
Reviewed-by: Chris Hillery <ceej@couchbase.com>
Tested-by: Chris Hillery <ceej@couchbase.com>