Remove coveralls token entirely, is supposed to "just work" for public repositories.
Remove coveralls token entirely, is supposed to "just work" for public
repositories.

google/gousb,bernhardgoedel/gousb,bernhardgoedel/gousb,kylelemons/gousb,google/gousb,bernhardgoedel/gousb,google/gousb,kylelemons/gousb,kylelemons/gousb