Remove external to database dump mapping #3664

Job	Run time
unit test (1.18.1, 27.2, lint)	30s
unit test (1.17.3, 25.0.4)	28s
integration test (1.17.3-erlang-27.1-alpine-3.17.9)	2m 53s
integration test (1.14.5-erlang-23.3.4.20-alpine-3.16.9)	3m 31s
unit test (1.17.3, 27.1)	25s
unit test (1.14.5, 24.3.4.17)	27s
integration test (1.17.3-erlang-25.0.4-alpine-3.17.9)	2m 52s
	11m 6s

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