system_api: Remove PowerStateChanged and SuspendStateChanged

These signals aren't emitted by powerd anymore.

BUG=chromium:359619
TEST=built it
CQ-DEPEND=Ie49e8377593fbd672e81ff846c889a08d734ce8d

Change-Id: I2f73a916797ae95bce071379a0cadce2e2cbe13c
Reviewed-on: https://chromium-review.googlesource.com/196275
Commit-Queue: Daniel Erat <derat@chromium.org>
Tested-by: Daniel Erat <derat@chromium.org>
Reviewed-by: Sameer Nanda <snanda@chromium.org>
2 files changed
tree: 7b76e0e058c0afe8be242ff36396233d87d0ca10
  1. constants/
  2. dbus/
  3. switches/
  4. README
  5. system_api.gyp