* helm-utils.el (with-helm--temp-buffer-window): Inline emacs-24.3 of `with-temp-buffer-window' which is broken in 24.4.
* helm-utils.el: Fix corruption due to previous bugfix.
* helm-utils.el (with-helm-display-marked-candidates): Remove old commented code.
* helm-utils.el (with-helm-display-marked-candidates): Get rid of `with-temp-buffer-window'.
* helm-files.el (helm-delete-marked-files): No need to create buffer.