website: get rid of old hashicorp stuff

website/config.ru

@@ -7,9 +7,6 @@ require "rack/contrib/try_static"
 # Properly compress the output if the client can handle it.
 use Rack::Deflater
 
-# Redirect the legacy URLs that point to www.vagrantup.com
-use HashiCorp::Rack::LegacyRedirect
-
 # Set the "forever expire" cache headers for these static assets. Since
 # we hash the contents of the assets to determine filenames, this is safe
 # to do.