docs: changes to deployment + remove admin deployment guides #34074

Job	Run time
setup	2m 2s
Shard (0) HTTP Integration Tests	12m 37s
integration-tests-packages	12m 54s
Shard (1) HTTP Integration Tests	8m 51s
Shard (0) Module Integration Tests	10m 30s
Shard (0) Unit Tests	8m 49s
Shard (1) Module Integration Tests	9m 19s
Shard (1) Unit Tests	5m 14s
unit-tests	1s
integration-tests-modules	1s
integration-tests-http	1s
	1h 10m 19s

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