systemd: remove obsolete ControlGroup settings

This systemd feature has been removed a while ago without replacement, and it turns out that systemd developers suggest not using control groups at all to assign real-time privileges. Therfore, a replacement feature will not be implement in future systemd releases, and we can really remove those lines completely. See http://bugs.musicpd.org/view.php?id=4413

systemd: remove obsolete ControlGroup settings
0cbfb610 · Max Kellermann · f901cd04 · 0cbfb610
Commit 0cbfb610 authored Oct 27, 2015 by Max Kellermann
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mpd.service.in systemd/mpd.service.in +0 -9

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--- a/systemd/mpd.service.in
+++ b/systemd/mpd.service.in
@@ -9,14 +9,5 @@ ExecStart=@prefix@/bin/mpd --no-daemon
 LimitRTPRIO=50
 LimitRTTIME=-1

-# move MPD to a top-level cgroup, as real-time budget assignment fails
-# in cgroup /system/mpd.service, because /system has a zero real-time
-# budget; see
-# http://www.freedesktop.org/wiki/Software/systemd/MyServiceCantGetRealtime/
-ControlGroup=cpu:/mpd
-
-# assign a real-time budget
-ControlGroupAttribute=cpu.rt_runtime_us 500000
-
 [Install]
 WantedBy=multi-user.target