systemd/systemd-services: drop pulseaudio (MR 5142)

PA is started automatically by its "autospawn" config thing, and it
works pretty well... if it crashes then it's automatically restarted if
needed, etc.

The included service/socket unit files never really worked,
PA started from systemd would always race with (and often to) PA autospawn.

The subpkg here also resulted in a packaging bug where both
pulseaudio-service and pw-pulse-service were installed at the same time,
because the `install_if` listed `pulseaudio`, and `pw-pulse` also
provides `pulseaudio`. The two unit things conflict with each other.

I did some initial investigation, and getting systemd to manage PA
seemed like too much work especially since autospawn is probably good
enough and we hope to move to pw audio later.

[ci:skip-vercheck]

extra-repos/systemd/systemd-services/APKBUILD

@@ -6,7 +6,7 @@
 # How to add a new service file (4 steps):
 pkgname=systemd-services
 # 1. bump pkgver
-pkgver=10
+pkgver=11
 pkgrel=0
 pkgdesc="Systemd service files"
 url="https://postmarketos.org"
@@ -36,7 +36,6 @@ subpackages="
 	openssh-server-pam-service:_service
 	pd-mapper-service:_service
 	phosh-service:_service
-	pulseaudio-service:_service
 	q6voiced-service:_service
 	qbootctl-service:_service
 	rmtfs-service:_service
@@ -68,7 +67,6 @@ _nftables_sources="system/nftables.service"
 _openssh_server_pam_sources="system/sshd.service system/sshdgenkeys.service"
 _pd_mapper_sources="system/pd-mapper.service"
 _phosh_sources="system/phosh.service"
-_pulseaudio_sources="user/pulseaudio.service user/pulseaudio.socket"
 _q6voiced_sources="system/q6voiced.service"
 _qbootctl_sources="system/qbootctl.service"
 _rmtfs_sources="system/rmtfs.service"
@@ -112,7 +110,6 @@ source="$(flatpath \
 	$_openssh_server_pam_sources \
 	$_pd_mapper_sources \
 	$_phosh_sources \
-	$_pulseaudio_sources \
 	$_q6voiced_sources \
 	$_qbootctl_sources \
 	$_rmtfs_sources \
@@ -163,8 +160,6 @@ fa445c4a53214524baed4e9c52a5463592a074f88a5a286eacb60d0907c0545f725afde23abd68cf
 c0badea3905c1d53d213fbfe11d25b556a2e484fe77eb50e9f4d42e25b67b56a0804e7d8e1b7731cd280cbb3525b4c60311817609381e2308d9f2dfb7c0d7072  system-sshdgenkeys.service
 0bed9a8a719661609ad84d1c6fcdf2fe9213e741682b7ddebad82d9744f137c593788ed522868f10b95b599d81743d07ec3212630a7e99d333261dfa1bf1cc11  system-pd-mapper.service
 5f53e07a48c64ab27deead4c1dc64dbea048de5632026d131e27e0fc3115723a1138d043199e2fdba9a281c420b3286a0aa96b063ed7f02c1153487ef732dd98  system-phosh.service
-416cdca1d43af8f7a9fcb5c04abdc666500f918fa5a6985736be6132da074aa1f322ba891d74eefaeff4b8911240a3942bf82ef21ec3ba0c1f10ccc37e6cea49  user-pulseaudio.service
-26c47085980e3f11f214d51846509f41ec9367360355b2d3fb40c7dc6e4394e04d084e645081d03c794669b902141513fbc6c3828b599588e308f98e28d99a92  user-pulseaudio.socket
 4c4c3f1e5e829ff67dd35df59120ab59730ff1f1ca0aab93f16d670132979a99099fad59e6c736908cc19df9172c9bdfe476ec721a1cc28de8c2210da46ce1f1  system-q6voiced.service
 621189aa251655796795f4fa0cd79360bb67573e7327e545064eaadafc83cc7b382a405d6ba80662e0a4ece3876e4270e3563d859a6ba63b5e3854b39c35873e  system-qbootctl.service
 11bb0ff9ab32f0f230c665db2738e37e5226fa200621b9207baf92e0632a38f840395a55ef6e827763911cf78f3bad95cd3456e77cc01b30b8abce96dc13df9d  system-rmtfs.service

extra-repos/systemd/systemd-services/user-pulseaudio.service

-[Unit]
-Description=Sound Service
-
-# We require pulseaudio.socket to be active before starting the daemon, because
-# while it is possible to use the service without the socket, it is not clear
-# why it would be desirable.
-#
-# A user installing pulseaudio and doing `systemctl --user start pulseaudio`
-# will not get the socket started, which might be confusing and problematic if
-# the server is to be restarted later on, as the client autospawn feature
-# might kick in. Also, a start of the socket unit will fail, adding to the
-# confusion.
-#
-# After=pulseaudio.socket is not needed, as it is already implicit in the
-# socket-service relationship, see systemd.socket(5).
-Requires=pulseaudio.socket
-ConditionUser=!root
-
-[Service]
-# FIXME: rebuild pulseaudio with journald support!
-ExecStart=/usr/bin/pulseaudio --daemonize=no --log-target=stderr
-LockPersonality=yes
-MemoryDenyWriteExecute=yes
-NoNewPrivileges=yes
-Restart=on-failure
-RestrictNamespaces=yes
-SystemCallArchitectures=native
-SystemCallFilter=@system-service
-# Note that notify will only work if --daemonize=no
-Type=notify
-UMask=0077
-Slice=session.slice
-
-[Install]
-Also=pulseaudio.socket
-WantedBy=default.target

extra-repos/systemd/systemd-services/user-pulseaudio.socket

-[Unit]
-Description=Sound System
-ConditionUser=!root
-
-[Socket]
-Priority=6
-Backlog=5
-ListenStream=%t/pulse/native
-
-[Install]
-WantedBy=sockets.target