doap: Remove Giovanni from maintainers
He is an emeritus member, which means he is no longer active.
In particular he is no longer in the 'gnomecvs' group, which is a pre-condition for being listed in the .doap file.
He is an emeritus member, which means he is no longer active.
In particular he is no longer in the 'gnomecvs' group, which is a pre-condition for being listed in the .doap file.