+ Introduce cancelDebt method.
+ Use the newly introduced functionality in client code.
+ Delete unused copy constructors (including unit test).
Change-Id: Ib976343ed5f50c649ea08206c897cb70dead8b86
Signed-off-by: Vratko Polak <vrpolak@cisco.com>
Signed-off-by: Robert Varga <robert.varga@pantheon.tech>
(cherry picked from commit
12b4928ef66a82f4a128a11701663ac23143c1d7)