Revert of Expose IA and IA2 role and state for HTML input type attributes related to date and time. (patchset #1 id:1 of https://codereview.chromium.org/612063002/)

Reason for revert:
This likely broke DumpAccessibilityTreeTest.AccessibilityInputTime in
content_browsertest

Original issue's description:
> Expose IA and IA2 role and state for HTML input type attributes related to date and time.
> 
> For input type date, datetime and datetime-local, time, month, week - IA and IA2 role and states
> are not exposed properly.
> 
> BUG=418486
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=182848

TBR=dmazzoni@chromium.org,aboxhall@chromium.org,plundblad@chromium.org,shreeram.k@samsung.com
NOTREECHECKS=true
NOTRY=true
BUG=418486

Review URL: https://codereview.chromium.org/609403005

git-svn-id: svn://svn.chromium.org/blink/trunk@182863 bbb929c8-8fbe-4397-9dbb-9b2b20218538