try to use non-auth for CouchDB test

.travis.yml

@@ -1,4 +1,3 @@
-sudo: required
 language: python
 cache: pip
 python:
@@ -10,7 +9,7 @@ services:
     - docker
     - mongodb
     - rabbitmq
-    - redis-server
+    - redis
     - mysql
     # - elasticsearch
     - postgresql

tests/test_database.py

@@ -759,10 +759,6 @@ class TestCouchDBTaskDB(TaskDBCase, unittest.TestCase):
     def setUpClass(self):
         # create a test admin user
         import requests
-        requests.put('http://localhost:5984/_node/_local/_config/admins/test',
-                     data='"password"')
-        os.environ["COUCHDB_USER"] = "test"
-        os.environ["COUCHDB_PASSWORD"] = "password"
         self.taskdb = database.connect_database(
             'couchdb+taskdb://localhost:5984/'
         )
@@ -773,10 +769,6 @@ def tearDownClass(self):
         # remove the test admin user
         import requests
         from requests.auth import HTTPBasicAuth
-        requests.delete('http://localhost:5984/_node/_local/_config/admins/test',
-                        auth=HTTPBasicAuth('test', 'password'))
-        del os.environ["COUCHDB_USER"]
-        del os.environ["COUCHDB_PASSWORD"]
         self.taskdb.drop_database()
 
     def test_create_project(self):