Remove a piece of unused code from ApiCompatibilityUtils

Remove a piece of unused code from ApiCompatibilityUtils

setStatusBarColor() should have been removed. This CL fulfills a TODO
that ianwen left.

BUG=NONE

Committed: https://crrev.com/adec03c97e92616741059b4e47e36275c385b159
Cr-Commit-Position: refs/heads/master@{#351224}

[Ian Wen, 2015-09-28 22:32:23]

ianwen@chromium.org changed reviewers:
+ aurimas@chromium.org

[Ian Wen, 2015-09-28 22:32:24]

PTAL

[aurimas (slooooooooow), 2015-09-28 23:04:27]

lgtm

[Ian Wen, 2015-09-28 23:05:15]

The CQ bit was checked by ianwen@chromium.org

[commit-bot: I haz the power, 2015-09-28 23:06:18]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1372283003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1372283003/1

[commit-bot: I haz the power, 2015-09-28 23:58:03]

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

[commit-bot: I haz the power, 2015-09-28 23:58:03]

Try jobs failed on following builders:
  android_clang_dbg_recipe on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/android_clang_d...)

[aurimas (slooooooooow), 2015-09-29 01:14:55]

The CQ bit was checked by aurimas@chromium.org

[commit-bot: I haz the power, 2015-09-29 01:15:14]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1372283003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1372283003/1

[commit-bot: I haz the power, 2015-09-29 01:21:22]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-09-29 01:22:09]

Patchset 1 (id:??) landed as
https://crrev.com/adec03c97e92616741059b4e47e36275c385b159
Cr-Commit-Position: refs/heads/master@{#351224}