Remove chromeos_imageburn.* BUG=chromium-os:16553 TEST=gmerge libcros Change-Id: Id45620c03ba58918d156673ce829082579fce540 Reviewed-on: https://gerrit.chromium.org/gerrit/15142 Reviewed-by: Satoru Takabayashi <[email protected]> Commit-Ready: Ryo Hashimoto <[email protected]> Tested-by: Ryo Hashimoto <[email protected]>