Electronic certificates on iOS mobiles
Skip information indexiOS How to delete your electronic certificate
It is possible to delete the certificates installed on a device with an IOS system by accessing the system settings.
You can select a specific certificate to remove from the profile list by going to "Settings", "General", "Profile". The window with the certificate information and the "Delete" option will be displayed.
You will be notified that changes are going to be made to the settings. Press "Delete."
To reinstall the certificate, see the help "How to import a valid copy of your electronic certificate on IOS devices".