Revert "Linux: enable ChromeMainTest.AppLaunch."
Revert "Linux: enable ChromeMainTest.AppLaunch."

Still fails on the builders but not locally.

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@42550 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