cros_build_lib: disable repo manifest tests

These rely on ToT repo code which can break things.  Disable tests in
branches since it's unlikely this code will break/change.  We'll find
a better solution in ToT.

BUG=chromium:647414
TEST=`./lib/cros_build_lib_unittest` no longer fails in branch w/ToT repo

Change-Id: I8133bff80cc64bd6c5c7bf43df6f32c058eb7987
Reviewed-on: https://chromium-review.googlesource.com/386196
Reviewed-by: Ketaki Deshpande <ketakid@chromium.org>
Commit-Queue: Ketaki Deshpande <ketakid@chromium.org>
Tested-by: Ketaki Deshpande <ketakid@chromium.org>
1 file changed