Remove dead neonDrawLighting code

Remove dead neonDrawLighting code

FELightingNEON.h's inline FELighting::platformApplyNeon() method refers
to an extern neonDrawLighting symbol.  This function is implemented in
assembly in WebKit but does not exist in blink.  This must then be dead
code (otherwise there would have been complaints).

The only reference to platformApplyNeon that I can find is an ifdef'ed
call in FELighting::platformApply(), which is only enabled if the target
supports NEON but not Thumb (which I guess must be very uncommon).

BUG=381082
TEST=build with arm_neon=1 arm_thumb=0

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=176365

[Mostyn Bramley-Moore, 2014-06-05 09:58:47]

@Stephen, sugoi1: PTAL.

[sugoi, 2014-06-05 11:42:55]

On 2014/06/05 09:58:47, Mostyn Bramley-Moore wrote:
> @Stephen, sugoi1: PTAL.

This will require Stephen's approval, but I have a small comment:
Just curious, why didn't you delete the FELightingNEON.h file entirely?

[Mostyn Bramley-Moore, 2014-06-05 12:29:59]

On 2014/06/05 11:42:55, sugoi wrote:
> On 2014/06/05 09:58:47, Mostyn Bramley-Moore wrote:
> > @Stephen, sugoi1: PTAL.
> 
> This will require Stephen's approval, but I have a small comment:
> Just curious, why didn't you delete the FELightingNEON.h file entirely?

I simply hadn't had enough time to grep around to make sure this wasn't used
elsewhere yet, but I think you're right.

[Mostyn Bramley-Moore, 2014-06-16 07:15:45]

@senorblanco: *ping*

I also realised that the ARM_TRADITIONAL macro was also now dead, so removed it.

[Stephen White, 2014-06-16 13:58:01]

LGTM

BTW, uploading a new patch does not automatically send an email to the
reviewers. You must send another message so that they see it.

[Mostyn Bramley-Moore, 2014-06-16 18:50:37]

On 2014/06/16 13:58:01, Stephen White wrote:
> LGTM

Thanks.  

> BTW, uploading a new patch does not automatically send an email to the
> reviewers. You must send another message so that they see it.

I think I added you to begin with, but I used @Stephen instead of @senorblanco -
I wasn't sure which would catch your attention.

[Mostyn Bramley-Moore, 2014-06-16 18:50:42]

The CQ bit was checked by mostynb@opera.com

[commit-bot: I haz the power, 2014-06-16 18:51:05]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/mostynb@opera.com/313303003/60001

[commit-bot: I haz the power, 2014-06-16 21:57:12]

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

[commit-bot: I haz the power, 2014-06-16 21:57:13]

Try jobs failed on following builders:
  blink_presubmit on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/blink_presubmit/builds/7751)

[Mostyn Bramley-Moore, 2014-06-17 00:27:12]

@jchaffraix: PTAL at the Source/wtf/CPU.h change.

[Julien - ping for review, 2014-06-17 23:39:05]

wtf/ rslgtm

[commit-bot: I haz the power, 2014-06-17 23:43:37]

Change committed as 176365