GTTF: Remove flaky and/or useless UI tests.
GTTF: Remove flaky and/or useless UI tests.

An example of a flake:

ChromeMainTest.AppLaunch:
c:\b\slave\win\build\src\chrome\app\chrome_main_uitest.cc(28):
error: Value of: UITest::GetBrowserProcessCount()
  Actual: 3
Expected: 2

BUG=none
TEST=ui_tests

Review URL: http://codereview.chromium.org/3796009

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@63033 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser