How to disable PIV and/or how to disable PIV docs?

[hiredgunhouse]

I've put:

let loaded_piv = 1

in my .vimrc, but when I call

:help filetype

I get PHP's filetype function description instead of Vim's filetype help. How can I disable (make disappear) all the docs that PIV contains in the doc directory. I'm looking for a more elegant/proper solution than deleting the doc directory.