Remove wirble from Gemfile, as dependency-ci objects that it has no license and it's not really neccessary.

gkellogg · gkellogg · commit e34fe7ab59ee · 2016-08-12T18:19:56.000-07:00
diff --git a/Gemfile b/Gemfile
@@ -24,7 +24,6 @@ group :development, :test do
 end
 
 group :debug do
-  gem "wirble"
   gem "byebug", platforms: :mri
 end
 
