Enable deprecation warnings on deps of jsoncpp on android

Disable the warning in two files where it still fires,
and where discussions are ongoing on how to fix it.
It's better to have the warning enabled for almost all files,
and then fix those two files ansynchronously.

Bug: 983223,1394735
Change-Id: Id9e00407fa0cd8d67aea71b4259266395c8cc73c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4079719
Auto-Submit: Nico Weber <thakis@chromium.org>
Reviewed-by: Hans Wennborg <hans@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Owners-Override: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1079894}
NOKEYCHECK=True
GitOrigin-RevId: fd7883d3374b520d96256f88b2552c58ff244401