Drop systemd direct dependency

This avoids pointlessly pulling systemd into flatpaks (not to mention
the buildroot of this package); the host system will always have systemd
installed as a core component, and the post/preun macros are conditional
on the presence of systemd.

kf5-kded.spec

@@ -24,8 +24,7 @@ BuildRequires:  kf5-rpm-macros
 
 BuildRequires:  qt5-qtbase-devel
 
-BuildRequires:  systemd
+BuildRequires:  systemd-rpm-macros
-%{?systemd_requires}
 
 
 %description