Displaying the graph also if tenants are not present
Prevent routes from beeing duplicated

Change-Id: Icf6967d450f32e8d80f365c1be3181e3c10c178e
diff --git a/src/app/service-graph/components/coarse/coarse.component.ts b/src/app/service-graph/components/coarse/coarse.component.ts
index fb04e2d..ed5d100 100644
--- a/src/app/service-graph/components/coarse/coarse.component.ts
+++ b/src/app/service-graph/components/coarse/coarse.component.ts
@@ -46,7 +46,7 @@
           this.$log.debug(`[XosCoarseTenancyGraph] Coarse Event and render`, res);
 
           // id there are no data, do nothing
-          if (!res.nodes || res.nodes.length === 0 || !res.links || res.links.length === 0) {
+          if (!res) {
             return;
           }
           this.graph = res;
@@ -138,9 +138,6 @@
   }
 
   private addNodeLinksToForceLayout(data: IXosServiceGraph) {
-    if (!data.nodes || !data.links) {
-      return;
-    }
     this.forceLayout
       .nodes(data.nodes)
       .links(data.links)