# File lib/openshift-origin-node/model/unix_user.rb, line 361
    def remove_env_var(key, prefix_cloud_name=false)
      status = false
      [".env", ".env/.uservars"].each do |path|
        env_dir = File.join(@homedir,path)
        if prefix_cloud_name
          # BZ 874594
          if @config.get("CLOUD_NAME")
            Syslog.alert "Setting CLOUD_NAME in #{OpenShift::Config::NODE_CONF_FILE} has no effect."
          end
          key = "OPENSHIFT_#{key}"
        end
        env_file_path = File.join(env_dir, key)
        FileUtils.rm_f env_file_path
        status = status ? true : (File.exists?(env_file_path) ? false : true)
      end
      status
    end