Last of the three modules that hand-rolled the same concat with wantedBy +
before and no requires, so a failed assembly left the consumer running against
a missing file and trusting nothing -- every outbound TLS call fails while the
unit looks healthy.
The forge is the one with two consumers: forgejo-sso-source fetches the
issuer's discovery document over the swarm CA and once shipped without the
trust its sibling had. It only exists when SSO is on, so the consumer list is
conditional -- naming an absent unit would define a serviceless one and order
nothing.
Removes the now-dead useSelfSigned and caContainerPath bindings (nix does not
warn) and retargets three comments the deletion orphaned, including the helper
header that still named this module as the per-call-site concat.