Remove actions for cookie check, we don't use them anymore

lib/travis/api/app/endpoint/authorization.rb

@@ -44,7 +44,6 @@ class Travis::Api::App
         ^ http://   (localhost|127\.0\.0\.1)(:\d+)?  $ |
         ^ https://  ([\w\-_]+\.)?travis-ci\.(org|com) $
       }x
-      set blank_gif: Base64.decode64('R0lGODlhBQAFAJH/AP///wAAAMDAwAAAACH5BAEAAAIALAAAAAAFAAUAAAIElI+pWAA7\n')
 
       # Endpoint for retrieving an authorization code, which in turn can be used
       # to generate an access token.
@@ -131,18 +130,6 @@ class Travis::Api::App
         end
       end
 
-      get '/set_cookie' do
-        content_type :gif
-        response.set_cookie('foo', 'bar')
-        settings.blank_gif
-      end
-
-      get '/check_cookie' do
-        content_type :js
-        Travis.logger.info [:cookies, request.cookies, env['HTTP_COOKIE']]
-        "cookiesCheckCallback(%p)" % request.cookies.include?('foo')
-      end
-
       error Faraday::Error::ClientError do
         halt 401, 'could not resolve github token'
       end