Is it possible to delete useless links on friendly portals?

It is now possible to delete friendly links.

With the introduction of the ADA Refactor and Jarvis Virus items, you can change faction ownership of a portal by using the appropriate object on any portal (provided you have enough XM): such action destroys all links and fields connected to it.

This works even for friendly portals, so, if you flip a portal from your faction to the opposing one, you can destroy its links (and then eventually re-capture the portal and recreate only the links you need).

There is no way to destroy own faction link, field or resonator (yet).

You can let the resonators decay, this will only takes 9 days if nobody recharges or attacks the portal and it will destroy all existing links.