[rackspace] removing :host from list of request parameters. See PR #2223 for details.

lib/fog/rackspace/service.rb

@@ -79,7 +79,6 @@ module Fog
       def request_params(params)
         params.merge({
           :headers  => headers(params),
-          :host     => endpoint_uri.host,
           :path     => "#{endpoint_uri.path}/#{params[:path]}"
         })
       end

tests/rackspace/service_tests.rb

@@ -68,7 +68,6 @@ Shindo.tests('Fog::Rackspace::Service', ['rackspace']) do
     REQUEST_HASH = {
       :path=>"/endpoint/my_service",
       :headers=>{"Content-Type"=>"application/json", "Accept"=>"application/json", "X-Auth-Token"=>"my_auth_token"},
-      :host=>"fog.io"
     }.freeze
 
     uri = URI.parse("http://fog.io/endpoint")