Remove class files when findbugs fails
Remove class files when findbugs fails

BUG=172293

Review URL: https://codereview.chromium.org/273703004

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@268983 0039d316-1c4b-4281-b951-d872f2087c98

shishkander/recipes-py,luci/recipes-py,luci/recipes-py,shishkander/recipes-py