Disable the extra font loading for paper-styles

This will only affect the polymer 3 and abovce as its on available from 3.0

Change-Id: Iba11ad7f9b7401ee13fe310bde4aef6ae2aba28f
diff --git a/polygerrit-ui/app/elements/gr-app-p2.js b/polygerrit-ui/app/elements/gr-app-p2.js
index 2163c02..5b6e316 100644
--- a/polygerrit-ui/app/elements/gr-app-p2.js
+++ b/polygerrit-ui/app/elements/gr-app-p2.js
@@ -17,6 +17,9 @@
 (function() {
   'use strict';
 
+  // Disable extra font load from paper-styles
+  window.polymerSkipLoadingFontRoboto = true;
+
   Polymer({
     is: 'gr-app-p2',
   });