[vcloud] Remove helpless helper

Looks like this class is used to override Fog::Connection in testing
probably by manually tweaking the "false"

Since I'm deprecating Fog::Connection it's not worth keeping track off.

tests/vcloud/models/compute/conn_helper.rb

@@ -1,20 +0,0 @@
-module Fog
-  module Vcloud
-    if false
-      class Fog::Connection
-        def request(params, &block)
-          path = File.expand_path(File.join(File.dirname(__FILE__),'..','..','data',params[:path].gsub(/^\//,'').gsub('/','_+_')))
-          if File.exists?(path)
-            body = File.read(path)
-          else
-            ''
-          end
-          Excon::Response.new(
-            :body   => body,
-            :status => 200,
-            :header => '')
-        end
-      end
-    end
-  end
-end