Remove obsolete Group tag

References: https://fedoraproject.org/wiki/Changes/Remove_Group_Tag

GConf2.spec

@@ -12,7 +12,6 @@ Name: GConf2
 Version: 3.2.6
 Release: 23%{?dist}
 License: LGPLv2+ and GPLv2+
-Group: System Environment/Base
 #VCS: git:git://git.gnome.org/gconf
 Source0: http://download.gnome.org/sources/GConf/3.2/GConf-%{version}.tar.xz
 Source1: macros.gconf2
@@ -58,7 +57,6 @@ support workgroup administration.
 
 %package devel
 Summary: Headers and libraries for GConf development
-Group: Development/Libraries
 Requires: %{name} = %{version}-%{release}
 Requires: libxml2-devel >= %{libxml2_version}
 Requires: glib2-devel >= %{glib2_version}