Re: error: unlink(.git/refs/remotes/origin/testbranch) failed: was remote does not support deleting refs

Jeff King [off-list ref] writes:

It is harmless, but it still feels a little wrong to scare the user with
that message, especially since "Failed to delete" is ambiguous; it looks
like the main operation, deleting the remote ref, failed. But it didn't;
the operation that failed was something not even explicitly asked for.

How about this cleanup:

Ack.