Revert of Turn off autofill highlight when changing option in an autofilled <select> element (patchset #3 id:40001 of https://codereview.chromium.org/553983012/)

Reason for revert:
This makes the FormAutofillTest.ClearFormWithNodeContainingSelectOne browser_test fail.

http://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=FormAutofillTest.ClearFormWithNodeContainingSelectOne&testType=browser_tests

Original issue's description:
> Turn off autofill highlight when changing option in an autofilled <select> element
> 
> R=isherman@chromium.org, tkent@chromium.org
> BUG=412311
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=182528

TBR=isherman@chromium.org,tkent@chromium.org,ziran.sun@samsung.com
NOTREECHECKS=true
NOTRY=true
BUG=412311

Review URL: https://codereview.chromium.org/597853004

git-svn-id: svn://svn.chromium.org/blink/trunk@182569 bbb929c8-8fbe-4397-9dbb-9b2b20218538