Remove unused dataService.loading_message

Change-Id: Ic335a812537fc935264108bb7f9f93a05134c3b2
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/app/common/services/dataService.js b/app/common/services/dataService.js
index b9ece13..63f9a72 100644
--- a/app/common/services/dataService.js
+++ b/app/common/services/dataService.js
@@ -22,7 +22,6 @@
 
       this.loading = false;
       this.server_unreachable = false;
-      this.loading_message = '';
       this.showNavigation = false;
       this.bodyStyle = {};
       this.path = '';