Revert of Fix a few bugs in the google3 sync scripts. (patchset #1 id:1 of https://codereview.chromium.org/1291343006/ )

Reason for revert:
MacMini buildbots were unable to apply the patch.
fatal: Could not parse object '18af0a0080cc2b2b3464292d35a0886cdade551f'.
http://build.chromium.org/p/client.skia/builders/Test-Mac10.9-Clang-MacMini6.2-CPU-AVX-x86_64-Release/builds/1580
http://build.chromium.org/p/client.skia/builders/Test-Mac10.9-Clang-MacMini6.2-CPU-AVX-x86_64-Debug/builds/1474
http://build.chromium.org/p/client.skia/builders/Test-Mac10.9-Clang-MacMini6.2-GPU-HD4000-x86_64-Release/builds/1566
http://build.chromium.org/p/client.skia/builders/Perf-Mac10.9-Clang-MacMini6.2-GPU-HD4000-x86_64-Release/builds/1480
http://build.chromium.org/p/client.skia/builders/Perf-Mac10.9-Clang-MacMini6.2-CPU-AVX-x86_64-Release/builds/1456
http://build.chromium.org/p/client.skia/builders/Test-Mac10.9-Clang-MacMini6.2-GPU-HD4000-x86_64-Debug/builds/1364

Original issue's description:
> Fix a few bugs in the google3 sync scripts.
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/18af0a0080cc2b2b3464292d35a0886cdade551f

TBR=mtklein@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1295213002
2 files changed