Unexpected channel URLs

At one time I experimented with having Anaconda install and manage an R environment. I gave up on that idea some time ago.

Since then I’ve installed a fresh version of miniconda3 on my Ubuntu 24.04 system. But conda info reports:

       channel URLs : https://repo.anaconda.com/pkgs/main/linux-64
                      https://repo.anaconda.com/pkgs/main/noarch
                      https://repo.anaconda.com/pkgs/r/linux-64
                      https://repo.anaconda.com/pkgs/r/noarch

I’ve searched the file system for mentions of the “…/r/…” stuff but have not been able to find any trace of it. It apparently doesn’t hurt to have those URLs there, but I’d still like to get rid of them.

Any ideas? Thanks.