test: Remove testHelpers file #41169

Job	Run time
dedupe	1m 47s
check-diff	9m 27s
git-safe-dependencies	1m 45s
scripts (lint)	3m 10s
unit-tests (1)	6m 0s
scripts (lint:tsc)	2m 10s
Check workflows	6s
unit-tests (2)	5m 54s
js-bundle-size-check	8m 19s
scripts (audit:ci)	1m 46s
unit-tests (3)	5m 58s
scripts (test:depcheck)	2m 9s
unit-tests (4)	5m 44s
scripts (test:tgz-check)	1m 49s
unit-tests (5)	5m 45s
unit-tests (6)	5m 45s
unit-tests (7)	6m 17s
unit-tests (8)	5m 54s
unit-tests (9)	6m 19s
unit-tests (10)	7m 46s
merge-unit-tests	3m 6s
ship-js-bundle-size-check	0s
sonar-cloud	1m 26s
sonar-cloud-quality-gate-status	34s
All jobs pass	1s
Check all jobs pass	1s
Log merge group failure	0s
	1h 38m 58s

Provide feedback