Remove GCC 4.6 bot from LKGR parsing.

As all Linux bots are gPrecise now, this bot is removed.

TEST=none
BUG=none
TBR=phoglund

Review URL: https://webrtc-codereview.appspot.com/1218004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@3679 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/tools/quality_tracking/track_build_status.py b/tools/quality_tracking/track_build_status.py
index 77ded71..30128fa 100755
--- a/tools/quality_tracking/track_build_status.py
+++ b/tools/quality_tracking/track_build_status.py
@@ -30,7 +30,6 @@
         'Linux64 Debug',
         'Linux64 Release',
         'Linux Clang',
-        'Linux64 Debug GCC4.6',
         'Linux Memcheck',
         'Linux Tsan',
         'Linux Asan',