`services.opentelemetry-collector` already defines
`serviceConfig.Restart = "always"` at the normal priority. The forwarder
added in #4537 defined `"on-failure"` beside it, and two definitions at
one priority are a conflict the module system refuses to resolve — so
`containers.swarm-bao` stopped evaluating at all (#4615).
Drop our definition rather than force a value over it, which is what the
sibling collector in swarm-otel.nix already does. The resolved value is
`"always"`, which is the one we want here: a forwarder that exits for any
reason, clean or not, has stopped shipping the store's journal.
`RestartSec` stays — it conflicts with nothing and is what keeps the
restarts during first-boot secret delivery under the default start-rate
limit.