Cleanup in build script.
Cleanup in build script.


Former-commit-id: 94416c23e038a043983591f29cb5ef5a7dfa6798
slipset/planck,mfikes/planck,DerekCuevas/planck,mnespor/planck,mfikes/planck,slipset/planck,ericstewart/planck,DerekCuevas/planck,ericstewart/planck,mfikes/planck,slipset/planck,mfikes/planck,mfikes/planck,mfikes/planck,ericstewart/planck,mnespor/planck,DerekCuevas/planck,mnespor/planck,slipset/planck,slipset/planck