remove boost::noncopyable dependency

Summary:
delete the copy ctor and copy-assignment operator of the classes that used it.

the Config base class now needs an explicitly default declared constructor since the compiler will no longer generate it once the above are deleted

Test Plan:

ninja all check check-functional

Reviewers: #bitcoin_abc, PiRK

Reviewed By: #bitcoin_abc, PiRK

Differential Revision: https://reviews.bitcoinabc.org/D9743