Merge "Revert "releasetools: Allow using futility-host to sign old TF.zip."" into nyc-dev am: b0df1ef7ac am: 983c979c25 am: bd6d03ab18 am: e64f52ebcd am: 55f185e0a4
am: 4f0a147b69

Change-Id: Id274c51c31d9a05248aa1a49bc776b7fec43010e