readline: How to unbind _all_ keys

[Henning]

I don't like to have dozens of key bindings I never use. Currently I
am issuing lots of lots of bind -r/-u commands to get rid of the
default bindings. This slows down console startup unnecessarily.

I would really like to have an inputrc command like $removeall or
something like bind -r/-u all.
Or is there something undocumented for this purpose?

And yes, I know, it's soooooooooooooooooo dangerous.

Henning