configure: Don't allow configurable systemd directories

They are not actually variable and defined statically in systemd. This
will make porting to other build systems easier so that we don't have to
duplicate this functionality.

Change-Id: I7752cf4caf12d4424e21cd04276e0f87ecddc335
Signed-off-by: William A. Kennington III <wak@google.com>
2 files changed