Remove log message about default cluster metadata provider.

Change-Id: Icfcc4fe722732cfd49883ea1746c1699c63a6736
diff --git a/core/net/src/main/java/org/onosproject/cluster/impl/ClusterMetadataManager.java b/core/net/src/main/java/org/onosproject/cluster/impl/ClusterMetadataManager.java
index 1fd2d11..ce85758 100644
--- a/core/net/src/main/java/org/onosproject/cluster/impl/ClusterMetadataManager.java
+++ b/core/net/src/main/java/org/onosproject/cluster/impl/ClusterMetadataManager.java
@@ -120,7 +120,6 @@
         if (primaryProvider != null && primaryProvider.isAvailable()) {
             return primaryProvider;
         }
-        log.warn("Primary cluster metadata provider not available. Using default fallback.");
         return getProvider("default");
     }