To forget a WiFi network on iOS devices such as an iPhone or iPad:
- Go to Settings > Wi-Fi
- Tap the information icon next to the network to forget
- Select Forget This Network
- Select Forget to confirm
You may be unable to forget the eduroam network due to an existing profile, to remove this:
- Go to Settings > General
- Depending on your version of iOS, select Profiles, Profiles & Device Management or VPN & Device Management
- Select then remove the eduroam profile