Serve fonts from Gerrit instead of Google Fonts.

Bug: Issue 3985
Change-Id: I107921c7e1fbc02e3b279f4d834c16447dffde51
diff --git a/polygerrit-ui/.gitignore b/polygerrit-ui/.gitignore
index 73b5221..b3b74a6 100644
--- a/polygerrit-ui/.gitignore
+++ b/polygerrit-ui/.gitignore
@@ -1,6 +1,6 @@
 node_modules
 npm-debug.log
 dist
-bower.json
+fonts
 bower_components
 .tmp