V1 API is removed by dfault now

Depends-On: Icc007047a8e9a527d48374b3efcec8cc5fd1be08

Change-Id: I5bfd17623bf2e981cfbeb6c303860678898979d7
diff --git a/designate_tempest_plugin/config.py b/designate_tempest_plugin/config.py
index 8552015..55f8576 100644
--- a/designate_tempest_plugin/config.py
+++ b/designate_tempest_plugin/config.py
@@ -57,7 +57,7 @@
 
 DnsFeatureGroup = [
     cfg.BoolOpt('api_v1',
-                default=True,
+                default=False,
                 help="Is the v1 dns API enabled."),
     cfg.BoolOpt('api_v2',
                 default=True,