Drop installation-time dependency on systemd

For rdma-core binary package, the dependency is really on systemd-udev
which provides udevadm. Since systemd can be installed without udev,
the dependency was not effective. But actually the dependency is not
needed at all, because the system will behave the same with and
without it. (If systemd-udev is installed later in the transaction,
the call to udevadm trigger is not necessary. If systemd-udev is
installed earlier in the transaction, the call to udevadm trigger will
succeed. And if if systemd-udev is not installed at all, it means that
there's no hardware support and udevadm doesn't need to be executed at
all.)

Similarly, %{systemd_requires} is not necessary for the systemd unit
scriptlets. See https://pagure.io/packaging-committee/c/46010f8b6ab077bf.
That commit also has a long explanation.

Also co-own the directory to avoid unowned directory warning.

rdma-core.spec

@@ -1,6 +1,6 @@
 Name: rdma-core
 Version: 30.0
-Release: 1%{?dist}
+Release: 2%{?dist}
 Summary: RDMA core userspace libraries and daemons
 
 # Almost everything is licensed under the OFA dual GPLv2, 2 Clause BSD license
@@ -54,7 +54,7 @@ BuildRequires: python-docutils
 BuildRequires: perl-generators
 %endif
 
-Requires: dracut, kmod, systemd, pciutils
+Requires: dracut, kmod, pciutils
 # Red Hat/Fedora previously shipped redhat/ as a stand-alone
 # package called 'rdma', which we're supplanting here.
 Provides: rdma = %{version}-%{release}
@@ -141,7 +141,6 @@ compatibility reasons.
 
 %package -n libibverbs
 Summary: A library and drivers for direct userspace use of RDMA (InfiniBand/iWARP/RoCE) hardware
-%{?systemd_requires}
 Requires: %{name}%{?_isa} = %{version}-%{release}
 Provides: libcxgb4 = %{version}-%{release}
 Obsoletes: libcxgb4 < %{version}-%{release}
@@ -198,7 +197,6 @@ displays information about RDMA devices.
 
 %package -n ibacm
 Summary: InfiniBand Communication Manager Assistant
-%{?systemd_requires}
 Requires: %{name}%{?_isa} = %{version}-%{release}
 
 %description -n ibacm
@@ -213,7 +211,6 @@ library knows how to talk directly to the ibacm daemon to retrieve data.
 
 %package -n iwpmd
 Summary: iWarp Port Mapper userspace daemon
-%{?systemd_requires}
 Requires: %{name}%{?_isa} = %{version}-%{release}
 
 %description -n iwpmd
@@ -248,7 +245,6 @@ Summary: Tools for using the InfiniBand SRP protocol devices
 Obsoletes: srptools <= 1.0.3
 Provides: srptools = %{version}-%{release}
 Obsoletes: openib-srptools <= 0.0.6
-%{?systemd_requires}
 Requires: %{name}%{?_isa} = %{version}-%{release}
 
 %description -n srp_daemon
@@ -401,6 +397,7 @@ rm -f %{buildroot}/%{_sbindir}/srp_daemon.sh
 %{_unitdir}/rdma.service
 %dir %{dracutlibdir}/modules.d/05rdma
 %{dracutlibdir}/modules.d/05rdma/module-setup.sh
+%dir %{_udevrulesdir}
 %{_udevrulesdir}/../rdma_rename
 %{_udevrulesdir}/60-rdma-ndd.rules
 %{_udevrulesdir}/60-rdma-persistent-naming.rules
@@ -652,6 +649,9 @@ rm -f %{buildroot}/%{_sbindir}/srp_daemon.sh
 %endif
 
 %changelog
+* Thu Jun 25 2020 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 30.0-2
+- Drop dependencies on systemd (#1837812)
+
 * Mon Jun 15 2020 Honggang Li <honli@redhat.com> - 30.0-1
 - Rebase to upstream release v30.0