dbus: Remove func that sends signal with no args

SendSignalWithNoArgumentsToSystemBus() is no longer being used.  Delete.

BUG=chromium-os:20115
TEST=none

Change-Id: Ia928bdc466ba4e2d128859b37717931e41f0e523
Signed-off-by: Simon Que <sque@chromium.org>
Reviewed-on: http://gerrit.chromium.org/gerrit/8174
Reviewed-by: Satoru Takabayashi <satorux@chromium.org>
2 files changed