245705e23c
In each library where an import is removed, the library uses some elements provided by the import, BUT there is another import which provides all of the same elements, and at least one more which the library uses. In this change, we remove the imports which can be simply removed in favor of the other already present imports. See https://github.com/dart-lang/sdk/issues/44569 for more information. Change-Id: Iea21ddba3f26637a244437911730253e4c6f22dc Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/199460 Reviewed-by: Paul Berry <paulberry@google.com> Commit-Queue: Samuel Rawlins <srawlins@google.com>