chore: remove all from non- init files #478

Job	Run time
Build wheels	1m 14s
Unit test - ./extensions/gubbins/gubbins-core	1m 26s
client-generation	3m 21s
Unit test - ./extensions/gubbins/gubbins-db	1m 44s
Unit test - ./extensions/gubbins/gubbins-logic	1m 39s
Unit test - ./extensions/gubbins/gubbins-routers	2m 11s
Unit test - ./extensions/gubbins/gubbins-client	1m 47s
Unit test - ./extensions/gubbins/gubbins-cli	1m 40s
build-image	2m 48s
pytest-integration	13m 59s
	31m 49s

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