test: remove E2E test for ngrx Effect decorator usage #714

Job	Run time
list	28s
workflow (build-cli)	1m 34s
workflow (modules-builder-tests)	1m 44s
workflow (devkit-core-tests)	1m 24s
workflow (devkit-core-tests-rerun)	1m 29s
workflow (build-unit-tests)	2m 15s
	8m 54s

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