Help cleaning up after device removal

I added a device which eventually crashed my server since there were alot of ports and other stuff. All server resources were consumed.
I managed to remove it through webgui but i discovered that my disk space became almost full because of this device. RRD folder is at whopping 31G and i would like to remove it.
How can i do this so it doesn’t break anything? Is it as simple as removing directory?

I ended up deleting that directory since i needed disk space. So far nothing to report

Make sure you have clean up options set up along with daily running.
https://docs.librenms.org/Support/Cleanup-options/

Thanks for the tip. Options were set since earlier but in this case i needed space ASAP.