hiding setup locales msg (#1691)

Author: sadakchap

src/dashboard/Push/PushNew.react.js

@@ -596,14 +596,15 @@ class PushNew extends DashboardView {
                   key={i} />);
               })}
             </div>
-            { !this.state.loadingLocale && this.state.availableLocales.length === 0 ?
+            { !this.state.loadingLocale && this.state.locales.length === 0 ?
               <a
                 href="https://github.com/parse-community/parse-dashboard#configuring-localized-push-notifications"
                 style={{ color: '#169CEE'}}
                 target='_blank'
               >
                 Please follow this guide to setup the push locales feature
               </a> :
+                !this.state.loadingLocale && this.state.availableLocales.length === 0 ? null :
               <Button
                 progress={this.state.loadingLocale}
                 disabled={this.state.availableLocales.length === 0}