[relay] Code cleaning in message marshalling #9024

Job	Run time
build-cache	4m 37s
build-cache	4m 37s
build-cache	4m 37s
test_client_on_docker	5m 6s
test_client_on_docker	5m 6s
test_client_on_docker	5m 6s
benchmark (386, sqlite)	5m 0s
benchmark (386, sqlite)	5m 0s
benchmark (386, sqlite)	5m 0s
test (386)	8m 5s
test (386)	8m 5s
test (386)	8m 5s
benchmark (386, postgres)	7m 38s
benchmark (386, postgres)	7m 38s
benchmark (386, postgres)	7m 38s
test_management (386, sqlite)	4m 4s
test_management (386, sqlite)	4m 4s
test_management (386, sqlite)	3m 15s
test (amd64)	10m 19s
test (amd64)	10m 19s
test (amd64)	10m 19s
benchmark (amd64, sqlite)	5m 42s
benchmark (amd64, sqlite)	5m 51s
benchmark (amd64, sqlite)	5m 51s
test_management (386, postgres)	9m 1s
test_management (386, postgres)	9m 1s
test_management (386, postgres)	9m 1s
benchmark (amd64, postgres)	9m 8s
benchmark (amd64, postgres)	9m 8s
benchmark (amd64, postgres)	9m 8s
test_management (amd64, sqlite)	3m 14s
test_management (amd64, sqlite)	3m 14s
test_management (amd64, sqlite)	3m 14s
test_management (amd64, postgres)	8m 49s
test_management (amd64, postgres)	8m 49s
test_management (amd64, postgres)	8m 49s
	4h 1m 38s

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