buffet: Move WebServClient out of libweave

libweave now relies on platform specific implementation of
weave::HttpServer.

BUG=brillo:1252
TEST='FEATURES=test emerge-gizmo buffet'

Change-Id: I8f2c2f119699ff5096a74dc05948db0eaf108ea3
Reviewed-on: https://chromium-review.googlesource.com/290142
Commit-Queue: Vitaly Buka <vitalybuka@chromium.org>
Trybot-Ready: Vitaly Buka <vitalybuka@chromium.org>
Tested-by: Vitaly Buka <vitalybuka@chromium.org>
Reviewed-by: Alex Vakulenko <avakulenko@chromium.org>
5 files changed
tree: 4aa4d695480385f14581754c8b86abcf122ef90e
  1. buffet/