libweave: Remove unused dbus references

Removed few unused forward declarations, friend classes and includes.

BUG=brillo:1251
TEST='FEATURES=test emerge-gizmo buffet'

Change-Id: Ibe3df462e0ed47e85937a778bdc7c6f46a65bd6a
Reviewed-on: https://chromium-review.googlesource.com/290102
Reviewed-by: Alex Vakulenko <avakulenko@chromium.org>
Reviewed-by: Vitaly Buka <vitalybuka@chromium.org>
Commit-Queue: Vitaly Buka <vitalybuka@chromium.org>
Tested-by: Vitaly Buka <vitalybuka@chromium.org>
3 files changed
tree: d902369880de142beb96f6c1ca1fd10cc9fb5575
  1. buffet/
  2. libweave/