capistrano task to remove cached_copy from remote server. (This is useful if your remote git repository has changed)

capistrano_delete_remote_cache_task.rb

namespace :deploy do
  desc "Removes the remote cache in order to deploy from a new remote repository"
  task :delete_remote_cache, :except => { :no_release => true } do
    run "cd #{shared_path}; rm -Rf cached-copy"
  end
end