Remove ZipTest browser test special case

The zip archiver NaCl module is lazily loaded crrev.com/594919. Remove
the browser_test special case handling added to control when that NaCl
loaded (only for zip tests); lazy loading should do that for us.

Bug: 889703
Change-Id: I726f32849a6278765a4932a405328faff78bd594
Reviewed-on: https://chromium-review.googlesource.com/1250341
Reviewed-by: Anand Mistry <amistry@chromium.org>
Commit-Queue: Noel Gordon <noel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#594977}
3 files changed