[net processing] Remove CNode::nLocalServices

Summary:
This concludes backport of core#25514
https://github.com/bitcoin/bitcoin/pull/25514/commits/8d8eeb422e64ccd08bce92eed2ee9cbbf55ffd67

Depends on D14749

Test Plan: ninja all check-all bitcoin-fuzzers

Reviewers: #bitcoin_abc, Fabien

Reviewed By: #bitcoin_abc, Fabien

Subscribers: Fabien

Differential Revision: https://reviews.bitcoinabc.org/D14750