unit: drop support for pre-v44 job serialization

No distro ships that old systemd versions anyway, hence let's drop
support for live-upgrades for them. Offline updates are still supported.
And live-upgrades will only lose the job queue, hence basically still
work...

1 files changed, 0 insertions, 6 deletions

diff --git a/src/core/unit.h b/src/core/unit.h
index 7ef970e9b8..9491ef64f9 100644
--- a/src/core/unit.h
+++ b/src/core/unit.h
@@ -166,12 +166,6 @@ struct Unit {
         /* Used during GC sweeps */
         unsigned gc_marker;
 
-        /* When deserializing, temporarily store the job type for this
-         * unit here, if there was a job scheduled.
-         * Only for deserializing from a legacy version. New style uses full
-         * serialized jobs. */
-        int deserialized_job; /* This is actually of type JobType */
-
         /* Error code when we didn't manage to load the unit (negative) */
         int load_error;