Revert "Avoid depending on immutables.value at runtime"
Revert "Avoid depending on immutables.value at runtime"

This reverts commit 8ed3332603523219d19bd8481664790db4d8acc7. It
should not be necessary with immutables.org-2.7.1.

Change-Id: Ifb323f6f17b9ec1119b74f036925b05fa44addce
Signed-off-by: Robert Varga <91ae5aa8c7a9f7e57b701db766e23e544aaa6ae9@pantheon.tech>

opendaylight/yangtools,opendaylight/yangtools