Revert of Convert the utility process JSON parser into a Mojo service. (patchset #13 id:240001 of https://codereview.chromium.org/1861573002/ )

Reason for revert:
broke browsertest:

https://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%20Tests%20%28dbg%29%281%29/builds/14012

Original issue's description:
> Convert the utility process JSON parser into a Mojo service.
>
> BUG=597124
>
> Committed: https://crrev.com/f8ce981e73207dfb46f6ccbfe2cd29378b3c4baf
> Cr-Commit-Position: refs/heads/master@{#391463}

TBR=sdefresne@chromium.org,bauerb@chromium.org,thakis@chromium.org,tsepez@chromium.org,amistry@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=597124

Review-Url: https://codereview.chromium.org/1951863002
Cr-Commit-Position: refs/heads/master@{#391483}
23 files changed