Previously, if an entry-point had no public exports (such as the `@angular/platform-server/shims` introduced in #40559, which is a side-effect-ful entry-point), it was incorrectly marked as having all its exports deprecated (which marks the entry-point as deprecated as well). This commit fixes this by ensuring that an entry-point is not marked as having all its exports deprecated if it has no public exports. PR Close #40737