Revert "Add chrome_cleaner sandboxed engine Mojo interfaces"

This reverts commit 0a12bc8f7a25464580101a8308c6c455fe62b6d9.

Reason for revert: https://chromium-review.googlesource.com/c/chromium/src/+/1186241 reverted a related patch, but the error in the log was from pup.mojom, which is in this patch. Reverting both patches until I can find the root cause.

Original change's description:
> Add chrome_cleaner sandboxed engine Mojo interfaces
> 
> R=​wfh
> 
> Bug: 830892
> Change-Id: I0a4b25b2ba04b65a80e2c03e9151b5ef55912432
> Reviewed-on: https://chromium-review.googlesource.com/1171737
> Commit-Queue: Joe Mason <joenotcharles@chromium.org>
> Reviewed-by: Will Harris <wfh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#585025}

TBR=joenotcharles@chromium.org,wfh@chromium.org

Change-Id: Ieaf8c3d4e8557361e79084b18708f786b88c8473
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 830892
Reviewed-on: https://chromium-review.googlesource.com/1186781
Reviewed-by: Joe Mason <joenotcharles@chromium.org>
Commit-Queue: Joe Mason <joenotcharles@chromium.org>
Cr-Commit-Position: refs/heads/master@{#585484}
9 files changed