def run_on_removals(paths)
      Runner.remove(Inspector.clean(paths, :missing_ok => true), watchers, options)
    end
def run_on_removals(paths)
      Runner.remove(Inspector.clean(paths, :missing_ok => true), watchers, options)
    end
Called on file(s) deletions that the Guard watches.

 @param [Array<String>] paths the deleted files or paths
 @raise [:task_has_failed] when run_on_change has failed