Revert of Check in executable for iOS test launcher

Revert of Check in executable for iOS test launcher (patchset #7 id:110001 of https://codereview.chromium.org/669673004/)

Reason for revert:
This caused gclient runhooks failed with error:
gyp: Dependency '/home/chrome-bot/chrome_root/src/third_party/zlib/zlib.gyp:zlib#host' not found while trying to load target /home/chrome-bot/chrome_root/src/third_party/libxml/libxml.gyp:libxml#host

See the build log:
http://build.chromium.org/p/chromiumos.chromium/builders/AMD64%20%28chromium%29/builds/2292/steps/cbuildbot/logs/stdio

Original issue's description:
> Check in executable for iOS test launcher
> 
> This doesn't do anything yet, mostly adds supporting infrastructure.
> 
> R=lliabraa@chromium.org, mark@chromium.org, sdefresne@chromium.org, lliabraa, mark, sdefresne
> TBR=darin
> 
> BUG=426870
> 
> Committed: https://chromium.googlesource.com/chromium/src/+/ec3246c03b35b330266ef3c26b651ab2f5876d19

TBR=sdefresne@chromium.org,lliabraa@chromium.org,darin@chromium.org,mark@chromium.org,phajdan.jr@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=426870

[jennyz, 2014-10-24 18:26:32]

Created Revert of Check in executable for iOS test launcher

[commit-bot: I haz the power, 2014-10-24 18:27:23]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/678743002/1

[commit-bot: I haz the power, 2014-10-24 18:28:35]

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

[commit-bot: I haz the power, 2014-10-24 18:28:37]

Failed to apply patch for base/test/launcher/test_launcher_ios.cc:
While running git rm base/test/launcher/test_launcher_ios.cc;
  fatal: pathspec 'base/test/launcher/test_launcher_ios.cc' did not match any
files

Patch:  D    base/test/launcher/test_launcher_ios.cc
Index: base/test/launcher/test_launcher_ios.cc
diff --git a/base/test/launcher/test_launcher_ios.cc
b/base/test/launcher/test_launcher_ios.cc
deleted file mode 100644
index
38e4ef9aa916ceca2d49d2f043cf65c1a3d6f6c3..0000000000000000000000000000000000000000
--- a/base/test/launcher/test_launcher_ios.cc
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/test/launcher/test_launcher.h"
-
-#include "base/bind.h"
-#include "base/test/launcher/unit_test_launcher.h"
-
-namespace {
-
-int DummyRunTestSuite(void) {
-  return -1;
-}
-
-}  // namespace
-
-int main(int argc, char** argv) {
-  return base::LaunchUnitTests(argc, argv, base::Bind(&DummyRunTestSuite));
-}

[commit-bot: I haz the power, 2014-10-24 18:29:35]

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