Revert 234194 "Add support for datalist to text input element on..."

> Add support for datalist to text input element on Android
> 
> We want to have a darker color divider between the datalist suggestions and autofill suggestions.
> 
> The ListView instance is constructed inside ListPopupWindow so we can't override ListView.drawDivider(), so we draw the divider inside the list item view.
> 
> BUG=242455
> 
> Review URL: https://codereview.chromium.org/23314003

TBR=keishi@chromium.org

Review URL: https://codereview.chromium.org/68243003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@234203 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 234203