Revert of Relanding [Android] Adding Smart GO/NEXT feature in Chrome (patchset #4 id:80001 of https://codereview.chromium.org/2948593002/ )

Reason for revert:
This caused perf regression on browse_social_facebook_infinite_scroll
test on most platforms.

See crbug.com/737388 for details.

Original issue's description:
> Relanding [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
>
> Initial patch is reviewed @ https://codereview.chromium.org/2839993002/
>
> BUG=410785,648986, 733222
>
> Review-Url: https://codereview.chromium.org/2948593002
> Cr-Commit-Position: refs/heads/master@{#481868}
> Committed: https://chromium.googlesource.com/chromium/src/+/4eb6812cc312e4ea919518a4e3087944e31b3b72

TBR=yosin@chromium.org,aelias@chromium.org,changwan@chromium.org,dcheng@chromium.org,kochi@chromium.org,tedchoc@chromium.org,tkent@chromium.org,yfriedman@chromium.org,nasko@chromium.org,ajith.v@samsung.com
BUG=410785,648986, 733222

patch from issue 2955283002 at patchset 1 (http://crrev.com/2955283002#ps1)

Change-Id: Idd861244a71d079581f7a1a6337c1ebad245ca71
Reviewed-on: https://chromium-review.googlesource.com/551697
Reviewed-by: Takayoshi Kochi <kochi@chromium.org>
Commit-Queue: Takayoshi Kochi <kochi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#482918}
25 files changed