REST specific provider is not ancillary, it should be a primary

Change-Id: I19f7076085709a79019c5b73ae361e819ff92ef7
diff --git a/web/api/src/main/java/org/onosproject/rest/resources/HostsWebResource.java b/web/api/src/main/java/org/onosproject/rest/resources/HostsWebResource.java
index 04886e4..34e13ca 100644
--- a/web/api/src/main/java/org/onosproject/rest/resources/HostsWebResource.java
+++ b/web/api/src/main/java/org/onosproject/rest/resources/HostsWebResource.java
@@ -188,7 +188,7 @@
      */
     private final class InternalHostProvider implements HostProvider {
         private final ProviderId providerId =
-                new ProviderId("host", "org.onosproject.rest", true);
+                new ProviderId("host", "org.onosproject.rest");
         private HostProviderService hostProviderService;
 
         /**