Fix dupe events

src/Setup.react.js

@@ -29,7 +29,7 @@ var Setup = React.createClass({
     SetupStore.removeListener(SetupStore.ERROR_EVENT, this.update);
   },
   handleRetry: function () {
-    metrics.track('Retried Setup');
+    metrics.track('Setup Retried');
     SetupStore.retry();
   },
   handleOpenWebsite: function () {

src/SetupStore.js

@@ -197,7 +197,6 @@ var SetupStore = assign(Object.create(EventEmitter.prototype), {
             this.emit(this.STEP_EVENT);
           }
           yield this.wait();
-          metrics.track('Setup Retried');
         }
       }
     }