refactor(@angular-devkit/build-angular): remove redundant spinner col… #2723

Job	Run time
list	20s
workflow (devkit-core-tests)	1m 10s
workflow (build-cli)	1m 47s
workflow (modules-builder-tests)	1m 59s
workflow (build-unit-tests)	2m 28s
workflow (devkit-core-tests-rerun)	1m 33s
	9m 17s

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