Merge #10642: Remove obsolete _MSC_VER check
Summary:
700d8d8 Remove obsolete _MSC_VER check (practicalswift)
Tree-SHA512: 3b33f3ce90a3b3b6abec74990fab88402f896402fc563b7081575f85dab05fc7e21fd4c640ca4b9a57a6ca01c5c8ca931be37cac6fa62968fc7b84c719ec6ede
Backport of Core PR10642
https://github.com/bitcoin/bitcoin/pull/10642/files
Test Plan: make
Reviewers: #bitcoin_abc, deadalnix, nakihito
Reviewed By: nakihito
Subscribers: nakihito
Differential Revision: https://reviews.bitcoinabc.org/D3847