Revert "tools: fix compiler warning in inspector_protocol"

This reverts commit ffb34b6d.

PR-URL: https://github.com/nodejs/node/pull/39694
Refs: https://chromium.googlesource.com/deps/inspector_protocol/+log


Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: James M Snell <jasnell@gmail.com>