I was just looking at what uses space on my DNS server Pi and found that there is a program (suite?) called hello_pi installed in /opt/vc.
Is this something that comes with a standard Pi installation or is it something I installed a long time ago and forgot about? The README file just tells how to build it, not what it does.
I see it's also on my other Pi (backup server) so I guess it must come with the standard Pi installation.
I assume I can just remove it?