Revert of [Android] Adding Smart GO/NEXT feature in Chrome (patchset #26 id:500001 of https://codereview.chromium.org/2839993002/ )

Reason for revert:
This caused several clusterfuzz bugs
(733197, 733218, 733282) - let me revert for
investigation on those.

Original issue's description:
> [Android] Adding Smart GO/NEXT feature in Chrome
>
> Smart Go/Next brings better user experience to the user during form submitting applications.
> For navigating between form elements, user can use NEXT/PREVIOUS button from IME
> without touching on individual fields. This will avoid unnecessary form submissions before
> filling or visiting all fields in the form.
>
> Additionally it will save user time and avoid redundant network requests before actually
> filling/attending entire fields in the form
>
> Design Document: https://docs.google.com/document/d/1h0diigZ8LUi7A3UKJ_zwNUbvNQoe-Nwr55_p6ivSPNg/edit?usp=sharing
>
> BUG=410785,648986
>
> Review-Url: https://codereview.chromium.org/2839993002
> Cr-Commit-Position: refs/heads/master@{#479126}
> Committed: https://chromium.googlesource.com/chromium/src/+/8d80ad1410dcb23f55c323a97e57eed750a611dc

TBR=tkent@chromium.org,changwan@chromium.org,dcheng@chromium.org,ekaramad@chromium.org,nasko@chromium.org,yosin@chromium.org,aelias@chromium.org,ajith.v@samsung.com
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=410785,648986

Review-Url: https://codereview.chromium.org/2938123002
Cr-Commit-Position: refs/heads/master@{#479601}
24 files changed