Revert "Set up dns server for kafka integration tests."

This reverts commit 1c75c19106.

dbms/tests/integration/helpers/docker_compose_kafka.yml

@@ -22,13 +22,3 @@ services:
       KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
     depends_on:
       - kafka_zookeeper
-
-  dns-proxy-server:
-    image: defreitas/dns-proxy-server
-    hostname: dns.mageddo
-    volumes:
-      - /var/run/docker.sock:/var/run/docker.sock
-      - /etc/resolv.conf:/etc/resolv.conf
-    ports:
-      - 5380:5380
-    network_mode: bridge

dbms/tests/integration/test_storage_kafka/test.py

@@ -23,7 +23,7 @@ def started_cluster():
         yield cluster
 
     finally:
-        cluster.shutdown(False)
+        cluster.shutdown()
 
 def test_kafka_json(started_cluster):
     instance.query('''