Kerberos: Remove upstart logic

CL:1593235 adds a service file that allows the daemon to be started on
the first D-Bus call. Thus, it does not have to be started manually
anymore. This CL removes the code to start kerberosd manually.

BUG=chromium:932075
TEST=Emerges

Change-Id: Idee16f9d9c6d3cffd621e24c888db5ced06d27ca
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1596426
Commit-Queue: Lutz Justen <ljusten@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#657646}
9 files changed