Remove reference to vendor dir from presubmit (#1698)
Remove reference to vendor dir from presubmit (#1698)

As it no longer exists.
AlCutter/trillian,gdbelvin/trillian,gdbelvin/trillian,google/trillian,Martin2112/trillian,Martin2112/trillian,Martin2112/trillian,AlCutter/trillian,RJPercival/trillian,gdbelvin/trillian,google/trillian,RJPercival/trillian