scripts: systemd CPUAccounting is deprecated

systemd 258 has the following changes noted in systemd.resource-control(5):

> `CPUAccounting=` setting is deprecated, because it is always available on the unified cgroup hierarchy and such setting has no effect.

Closes #327

Signed-off-by: benaryorg <binary@benary.org>

scripts/beesd@.service.in

@@ -6,7 +6,6 @@ After=sysinit.target
 [Service]
 Type=simple
 ExecStart=@PREFIX@/@BINDIR@/beesd --no-timestamps %i
-CPUAccounting=true
 CPUSchedulingPolicy=batch
 CPUWeight=12
 IOSchedulingClass=idle