Don't include rev tree in credentials
Don't include rev tree in credentials

couch_query_servers:json_doc/1 adds the full revision
tree to the resulting EJSON object. This is not necessary
at all.
Detail noticed thanks to COUCHDB-1390.

cloudant/couchdb-couch,smithsz/couchdb-couch,fkaempfer/couchdb,ngpestelos/couchdb-couch,alanning/couchdb-couch,alanning/couchdb-couch,smithsz/couchdb-couch,KlausTrainer/couchdb-couch,fkaempfer/couchdb,ngpestelos/couchdb-couch,fkaempfer/couchdb,smithsz/couchdb-couch,apache/couchdb-couch,fkaempfer/couchdb,cloudant/couchdb-couch,apache/couchdb-couch,alanning/couchdb-couch,KlausTrainer/couchdb-couch,cloudant/couchdb-couch,KlausTrainer/couchdb-couch,fkaempfer/couchdb,ngpestelos/couchdb-couch,fkaempfer/couchdb,apache/couchdb-couch