refactor(@angular/ssr): remove deprecated `provideServerRoutesConfig`… #275

Job	Run time
list	39s
workflow (build-cli)	40s
workflow (modules-builder-tests)	43s
workflow (devkit-core-tests)	38s
workflow (devkit-core-tests-rerun)	42s
workflow (build-unit-tests)	42s
	4m 4s

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