[NaCl SDK] Remove gtest_main.cc from libgtest

[NaCl SDK] Remove gtest_main.cc from libgtest

This file is not supposed to be part of libgtest but in its
own library called libgtest_main.a.  Its also fairly
useless right now in the context of PPAPI (all our gtest
examples currently use ppapi_simple and define their own
entry point).  In the long run we could re-enable this
if it becomes useful, but really we should probably just
remove the gtest libraries from the SDK completely since
shipping gtest in library form is not recommended practice.

Committed: https://crrev.com/862ca287ca57dabc1f021a1ab0cdfcb13269d8d7
Cr-Commit-Position: refs/heads/master@{#318932}

[Sam Clegg, 2015-03-02 19:55:20]

sbc@chromium.org changed reviewers:
+ binji@chromium.org

[binji, 2015-03-03 19:03:40]

This Windows failure seems like it shouldn't be caused by your change, but it is
failing in gtest. Can you take a look?

In file included from
S:/src/out/pepper_43/include/gtest/internal/gtest-internal.h:40,
                 from
S:/src/out/pepper_43/include/gtest/internal/gtest-death-test-internal.h:40,
                 from S:/src/out/pepper_43/include/gtest/gtest-death-test.h:41,
                 from gtest-death-test.cc:34:
S:/src/out/pepper_43/include/gtest/internal/gtest-port.h:387:21: error: operator
'>=' has no left operand
S:/src/out/pepper_43/include/gtest/internal/gtest-port.h:689:64: error: operator
'||' has no right operand

[binji, 2015-03-03 19:11:32]

Sounds like it is unrelated.

lgtm

[Sam Clegg, 2015-03-03 19:51:14]

The CQ bit was checked by sbc@chromium.org

[commit-bot: I haz the power, 2015-03-03 19:52:37]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/958233004/1

[commit-bot: I haz the power, 2015-03-03 19:55:52]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-03 19:57:11]

Patchset 1 (id:??) landed as
https://crrev.com/862ca287ca57dabc1f021a1ab0cdfcb13269d8d7
Cr-Commit-Position: refs/heads/master@{#318932}