trivial: Fix a tiny leak in FwupdRemote
trivial: Fix a tiny leak in FwupdRemote

hughsie/fwupd,vathpela/fwupd,fwupd/fwupd,hughsie/fwupd,superm1/fwupd,hughsie/fwupd,superm1/fwupd,fwupd/fwupd,vathpela/fwupd,hughsie/fwupd,superm1/fwupd,fwupd/fwupd,vathpela/fwupd,fwupd/fwupd,vathpela/fwupd