Remove SK_BUILD_FOR_WINCE.

Remove SK_BUILD_FOR_WINCE.

This hasn't been tested for years, and no one currently knows when it
last worked (if ever). It is doubtful that any of the remaining logic
would even make sense with a modern version of Embedded Compact 2013.

Committed: https://skia.googlesource.com/skia/+/028205bedb7df56b0995ebb44238a69ff1681d0b

[bungeman-skia, 2015-07-29 19:25:09]

The CQ bit was checked by bungeman@google.com to run a CQ dry run

[commit-bot: I haz the power, 2015-07-29 19:25:24]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1260453008/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1260453008/1

[bungeman-skia, 2015-07-29 19:25:44]

bungeman@google.com changed reviewers:
+ reed@google.com

[reed1, 2015-07-29 19:28:05]

death to you all

lgtm

[bungeman-skia, 2015-07-29 19:33:40]

The CQ bit was unchecked by bungeman@google.com

[bungeman-skia, 2015-07-29 19:33:45]

The CQ bit was checked by bungeman@google.com

[commit-bot: I haz the power, 2015-07-29 19:33:59]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1260453008/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1260453008/1

[commit-bot: I haz the power, 2015-07-29 19:34:30]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/028205bedb7df56b0995ebb44238a69ff1681d0b