d/control: drop mercurial-git from Suggests
d/control: drop mercurial-git from Suggests

It was a bogus relationship. More on debian bug #835929.

Signed-off-by: Arturo Borrero Gonzalez <e8bc682de39f8160e26870ce75968bfd56ccc87b@debian.org>

aborrero/pkg-liquidprompt