Remove erroneous error trace.

It appears this trace is informational, not an error.
Discovered in a plugin log from a ChromeOS device. Just
decided to remove it.

BUG=http://code.google.com/p/chromium-os/issues/detail?id=29356
TEST=build on Linux

Review URL: https://webrtc-codereview.appspot.com/479012

git-svn-id: http://webrtc.googlecode.com/svn/trunk@2043 4adac7df-926f-26a2-2b94-8c16560cd09d
1 file changed