linux: remove the xmessage-based error dialog
linux: remove the xmessage-based error dialog

Since this is for developers only, developers use the console
anyway.  The dialog is cute but superfluous and actually kind
of annoying.

BUG=37026

Review URL: http://codereview.chromium.org/5905005

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@69484 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