(PTFE-248) Remove stab branch simplify #899

Job	Run time
lint	39s
unit (utests)	51s
unit (tests-server)	1m 11s
unit (tests-api-mock)	49s
integration (tests-noqueue, TaskQueueTests)	2m 46s
integration (tests-noqueue, QuickTest)	1m 50s
integration (tests-noqueue, TestBertE)	5m 0s
integration (tests, QuickTest)	1m 48s
integration (tests, RepositoryTests)	37s
integration (tests-noqueue, RepositoryTests)	39s
integration (tests-noqueue, TestQueueing)	33s
integration (tests, BuildFailedTest)	41s
integration (tests, TestQueueing)	4m 19s
integration (tests-noqueue, BuildFailedTest)	34s
integration (tests, TaskQueueTests)	2m 58s
integration (tests, TestBertE)	6m 2s
	31m 17s

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