The GrpcMaxConnectionAge and GrpcMaxConnectionAgeGrace constants have a troubled
history - they were removed in 2022 due to gRPC issues, reverted later, and
recently re-added. However, they are not essential to the core worker reconnection
fix which was solved through proper goroutine ordering.
The Docker Swarm DNS handling mentioned in the comments is not critical, and
these parameters have caused problems in the past. Removing them simplifies
the configuration without losing functionality.
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