As a result of this, github.com/google/tink/go/tink/tink becomes
github.com/google/tink/go/tink.

To re-generate BUILD files, run bazel run :gazelle.

Change-Id: I50af31d47d8014d21a19ae8318230ea616489e4a
ORIGINAL_AUTHOR=Thai Duong <thaidn@google.com>
GitOrigin-RevId: fea34065f64916eb2c44cb8d398937f81c7a748e