Remove duplicate bluetooth dbus constants.

They are already defined in service_constants.h.

Change-Id: Ida62378b22cbc9e3f3adb0e61ffd32bd0580b232
Reviewed-on: https://chromium-review.googlesource.com/c/1419008
Reviewed-by: Rahul Chaturvedi <rkc@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#625013}
2 files changed