Upstream PR: https://chromium-review.googlesource.com/c/deps/inspector_protocol/+/1989575
Remove support for emitting cbor into an std::string.

New Revision: b29d8a5d2bb56b3e555bb27a0e035a9d571c5f28

Change-Id: I6bf63822c4c6551db30f5902d1f27f6933b209a5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1989973
Auto-Submit: Johannes Henkel <johannes@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65645}