Remove test_util:request
Remove test_util:request

Use test_request:request instead

COUCHDB-2547

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