Revert of node.cloneNode() should clone the value of file upload elements

Revert of node.cloneNode() should clone the value of file upload elements (https://codereview.chromium.org/267713006/)

Reason for revert:
Caused a serious regression, crbug.com/388795.


Original issue's description:
> node.cloneNode() should clone the value of file selected
> 
> when input element of type file with a selected file is cloned, the cloned node should
> also have the same file as selected.
> HTML specification states:
> http://www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html
> "The cloning steps for input elements must propagate the value, dirty value
> flag, checkedness, and dirty checkedness flag from the node being cloned to the
> copy."
> 
> The value for the input element of type fileupload is the filename.
> 
> Behaviours in major Browser:
> Firefox- clones filename
> Safari, IE & Opera- do not Clone filename 
> 
> BUG=71536
> TEST=fast/forms/file/input-file-element-clone.html
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=173626

BUG=71536, 388795
TBR=gnanasekar.s@samsung.com
NOTRY=true

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=177256

[tkent, 2014-06-30 23:39:22]

Created Revert of node.cloneNode() should clone the value of file upload
elements

[commit-bot: I haz the power, 2014-06-30 23:39:39]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/tkent@chromium.org/364503002/1

[commit-bot: I haz the power, 2014-06-30 23:39:39]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-06-30 23:39:40]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer or
a provisional committer, _not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[tkent, 2014-06-30 23:40:44]

The CQ bit was checked by tkent@chromium.org

[commit-bot: I haz the power, 2014-06-30 23:41:50]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/tkent@chromium.org/364503002/1

[commit-bot: I haz the power, 2014-06-30 23:42:24]

Change committed as 177256