tree 3b4c1d0f647c3d8c460158284a3690c676482ce2
parent eed8a371ea53939096ba94d44001e0637d042572
author Chris Dickens <christopher.a.dickens@gmail.com> 1608413378 -0800
committer Chris Dickens <christopher.a.dickens@gmail.com> 1608413378 -0800

travis: Turn off Homebrew updates

The builds no longer succeed on the xcode9.4 image because updating
Homebrew takes too much time. The packages we need from Homebrew are not
frequently updated, so using the latest formulae that the image provides
should be sufficient.

Signed-off-by: Chris Dickens <christopher.a.dickens@gmail.com>