Revert of Return the accessible selection bounds in password fields.

Revert of Return the accessible selection bounds in password fields. (patchset #2 id:20001 of https://codereview.chromium.org/1009543009/)

Reason for revert:
Fails tests, prevents roll:

http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_ng/builds/39363

Original issue's description:
> Return the accessible selection bounds in password fields.
> 
> There's no reason not to return it. This code was originally
> added to WebKit to mimic the behavior of other Mac fields, but
> it seems to work fine without it.
> 
> While we're at it, make sure that role=textbox is exposed as
> a password field, too.
> 
> BUG=84250
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=192125

TBR=aboxhall@chromium.org,dmazzoni@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=84250
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=192145

[pfeldman, 2015-03-19 09:18:46]

Created Revert of Return the accessible selection bounds in password fields.

[commit-bot: I haz the power, 2015-03-19 09:19:21]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1016293002/1

[commit-bot: I haz the power, 2015-03-19 09:20:17]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=192145