Drop --clone from skia

Drop --clone from commands in skia repo.

--clone, and SkPicture::clone(), are no longer.

CQ_EXTRA_TRYBOTS=tryserver.skia:Housekeeper-PerCommit-Trybot

BUG=skia:
R=rmistry@google.com

Committed: https://skia.googlesource.com/skia/+/a40239c

[rmistry, 2014-06-27 21:06:15]

LGTM

[mtklein, 2014-06-27 21:08:14]

The CQ bit was checked by mtklein@google.com

[commit-bot: I haz the power, 2014-06-27 21:08:51]

CQ is trying da patch. Follow status at
 https://skia-tree-status.appspot.com/cq/mtklein@chromium.org/343813006/1

[commit-bot: I haz the power, 2014-06-27 21:08:55]

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

[commit-bot: I haz the power, 2014-06-27 21:08:55]

Presubmit check for 343813006-1 failed and returned exit status 1.

Running presubmit commit checks ...

** Presubmit ERRORS **
Pylint (2 files) (0.85s) failed
************* Module
/b/infra_internal/commit_queue/workdir/skia/gm/rebaseline_server/compare_rendered_pictures_test.py
W0611: 23,0: Unused import sys
************* Module
/b/infra_internal/commit_queue/workdir/skia/tools/tests/render_pictures_test.py
C0301:332,0: Line too long (84/80)
C0301:341,0: Line too long (85/80)
C0301:470,0: Line too long (83/80)
C0301:475,0: Line too long (83/80)
C0301:480,0: Line too long (84/80)
C0301:485,0: Line too long (83/80)
C0301:490,0: Line too long (83/80)
C0301:495,0: Line too long (83/80)
C0301:506,0: Line too long (86/80)
C0301:511,0: Line too long (85/80)
C0301:516,0: Line too long (85/80)
C0301:521,0: Line too long (85/80)
C0301:526,0: Line too long (86/80)
C0301:531,0: Line too long (86/80)
W0612:295,41:RenderPicturesTest.test_untiled_empty_expectations_file: Unused
variable 'fh'


Presubmit checks took 1.6s to calculate.

[mtklein_C, 2014-06-27 21:09:43]

Committed patchset #1 manually as ra40239c.