Drop unnecessary requires on dconf

dconf is just one of the possible gsettings backends and in some cases
others work better. Drop the hard requires here to let the platform
decide which backend is best. In flatpaks in particular dconf is not a
good backend.

Note that dconf is already pulled in (through recommends) by gtk3 and
gtk4 so it's going to be always installed on regular Fedora systems.

evolution-data-server.spec

@@ -54,7 +54,7 @@
 
 Name: evolution-data-server
 Version: 3.40.0
-Release: 1%{?dist}
+Release: 2%{?dist}
 Summary: Backend data server for Evolution
 License: LGPLv2+
 URL: https://wiki.gnome.org/Apps/Evolution
@@ -73,7 +73,6 @@ Obsoletes: compat-evolution-data-server310-libcamel < 3.12
 
 ### Dependencies ###
 
-Requires: dconf
 Requires: %{name}-langpacks = %{version}-%{release}
 
 ### Build Dependencies ###
@@ -478,6 +477,9 @@ find $RPM_BUILD_ROOT -name '*.so.*' -exec chmod +x {} \;
 %{_datadir}/installed-tests
 
 %changelog
+* Fri Mar 26 2021 Kalev Lember <klember@redhat.com> - 3.40.0-2
+- Drop unnecessary requires on dconf
+
 * Fri Mar 19 2021 Milan Crha <mcrha@redhat.com> - 3.40.0-1
 - Update to 3.40.0