DatabaseManager: client initialization bug fix

Change-Id: I62afbc2847728e304f90c13f8af284be89e84ab7
diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/service/impl/DatabaseManager.java b/core/store/dist/src/main/java/org/onlab/onos/store/service/impl/DatabaseManager.java
index 65b0544..306e3dc 100644
--- a/core/store/dist/src/main/java/org/onlab/onos/store/service/impl/DatabaseManager.java
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/service/impl/DatabaseManager.java
@@ -182,7 +182,6 @@
 
         copycat.start().get();
 
-        client = new DatabaseClient(copycatMessagingProtocol);
         client.waitForLeader();
 
         log.info("Started.");