DEVELOPERS: drop Guillaume Gardet, domain no longer exists
The oliseo.fr domain no longer responds to SMTP requests:
smtplib.SMTPRecipientsRefused: {'Guillaume Gardet <guillaume.gardet@oliseo.fr>': (550, b'5.1.2 <guillaume.gardet@oliseo.fr>: Recipient address rejected: Domain not found')}
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit e79c34a5214d574558406b96601273227a1b133d)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Thomas Petazzoni