Fixing lint

Change-Id: I8e87a639768aa3af3f38e2acbb54afeaf8789576
diff --git a/src/group-manager.js b/src/group-manager.js
index 97e215f..c0844c3 100644
--- a/src/group-manager.js
+++ b/src/group-manager.js
@@ -47,8 +47,6 @@
 
   privates: {
     advertise: function() {
-      var self = this;
-
       var basicPerms = new Map([
         ['Admin', {in: [this.identity.account]}],
         ['Read', {in: ['...']}],