The user option `dired-x-hands-off-my-keys' implies that dired-x won't
touch the users key bindings, but it will actually set [remap find-file]
regardless.
If I set [remap find-file] personally, `dired-x' will unset it, which
contradicts the meaning of "hands off my keys" in English.
In GNU Emacs 25.2.1 (x86_64-pc-linux-gnu, GTK+ Version 3.10.8), modified by Debian
Windowing system distributor 'The X.Org Foundation', version 11.0.11803000
System Description: Ubuntu 14.04 LTS