HBASE-27066 The Region Visualizer display failed

Reviewed-by: litao <tomleescut@gmail.com>

Author: ndimiduk

hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/RegionVisualizerTmpl.jamon

@@ -29,7 +29,7 @@ limitations under the License.
           description: 'Total `storefileSize` per Region Server',
           data: {
             name: 'region_info',
-            url: 'http://localhost:16010/api/v1/admin/cluster_metrics/live_servers',
+            url: '/api/v1/admin/cluster_metrics/live_servers',
             format: { type: 'json', property: 'data' }
           },
           transform: [