Futex on FreePBX distro

Hell everyone,

I have many FreePBX distro’s, and only 1 of them appears to have something I know I did not install: FUTEX

This is located in /var/www/html

Any idea what this is and what it would be used for?
Should it be removed?

I cannot find any posts indicating this is an issue or hack.

If someone could shed some light on this please.