Remove the deprecated functionalities scheduled to be removed in Nx v21.
BREAKING CHANGE: Remove the deprecated data persistence operators
previously exported in `@nx/angular` and the deprecated testing utils
previously exported in `@nx/angular/testing`.
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Co-authored-by: Colum Ferry <cferry09@gmail.com>
Co-authored-by: Nicholas Cunningham <ndcunningham@gmail.com>
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Co-authored-by: Nicholas Cunningham <ndcunningham@gmail.com>
