Can I remove the PVR and Pornhub apps from my IRIS?
Yes sure.
You just need to unbind your device with your PVR account and restart your device. Then your device will turn into a common VR headset that can be used for anyone.
How to unbind:
Login on www.pvr.fun website and navigate to User Center (the portrait icon at top right corner of the site)-->Device, then click the UNBINDING option. After this, remember to restart your device.