Revert of Hack to fix settings-checkbox mixin for 1.6.0

Revert of Hack to fix settings-checkbox mixin for 1.6.0 (patchset #2 id:20001 of https://codereview.chromium.org/2168383003/ )

Reason for revert:
Not required if we disable useNativeCSSProperties for 1.6.0.

Original issue's description:
> Hack to fix settings-checkbox mixin for 1.6.0
>
> BUG=
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation
>
> Committed: https://crrev.com/8f718e9ac7ba2194633a6a827a0dbc57570714a7
> Cr-Commit-Position: refs/heads/master@{#407347}

TBR=dbeam@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=

Committed: https://crrev.com/ee177cde6f47e9e834fa5e3eda481bedb70215df
Cr-Commit-Position: refs/heads/master@{#407708}

[michaelpg, 2016-07-25 17:15:23]

Created Revert of Hack to fix settings-checkbox mixin for 1.6.0

[Dan Beam, 2016-07-25 20:52:10]

lgtm

[michaelpg, 2016-07-26 03:49:40]

The CQ bit was checked by michaelpg@chromium.org

[commit-bot: I haz the power, 2016-07-26 03:49:50]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-07-26 04:38:47]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-26 04:40:35]

Description was changed from

==========
Revert of Hack to fix settings-checkbox mixin for 1.6.0 (patchset #2 id:20001 of
https://codereview.chromium.org/2168383003/ )

Reason for revert:
Not required if we disable useNativeCSSProperties for 1.6.0.

Original issue's description:
> Hack to fix settings-checkbox mixin for 1.6.0
> 
> BUG=
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation
> 
> Committed: https://crrev.com/8f718e9ac7ba2194633a6a827a0dbc57570714a7
> Cr-Commit-Position: refs/heads/master@{#407347}

TBR=dbeam@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=
==========

to

==========
Revert of Hack to fix settings-checkbox mixin for 1.6.0 (patchset #2 id:20001 of
https://codereview.chromium.org/2168383003/ )

Reason for revert:
Not required if we disable useNativeCSSProperties for 1.6.0.

Original issue's description:
> Hack to fix settings-checkbox mixin for 1.6.0
>
> BUG=
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation
>
> Committed: https://crrev.com/8f718e9ac7ba2194633a6a827a0dbc57570714a7
> Cr-Commit-Position: refs/heads/master@{#407347}

TBR=dbeam@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=

Committed: https://crrev.com/ee177cde6f47e9e834fa5e3eda481bedb70215df
Cr-Commit-Position: refs/heads/master@{#407708}
==========

[commit-bot: I haz the power, 2016-07-26 04:40:36]

Patchset 1 (id:??) landed as
https://crrev.com/ee177cde6f47e9e834fa5e3eda481bedb70215df
Cr-Commit-Position: refs/heads/master@{#407708}