Remove redundant type information from rpc docs
Summary:
Co-Authored-By: MarcoFalke <falke.marco@gmail.com>
This is a backport of Core PR18268
Test Plan: proof-reading
Reviewers: #bitcoin_abc, deadalnix
Reviewed By: #bitcoin_abc, deadalnix
Differential Revision: https://reviews.bitcoinabc.org/D8829