Don't set group tags

They are unused in Fedora.

librsvg2.spec

@@ -4,9 +4,7 @@ Version:        2.40.17
 Release:        1%{?dist}
 
 License:        LGPLv2+
-Group:          System Environment/Libraries
 URL:            https://wiki.gnome.org/Projects/LibRsvg
-#VCS:           git:git://git.gnome.org/librsvg
 Source:         http://download.gnome.org/sources/librsvg/2.40/librsvg-%{version}.tar.xz
 
 BuildRequires:  chrpath
@@ -31,7 +29,6 @@ An SVG library based on cairo.
 
 %package devel
 Summary:        Libraries and include files for developing with librsvg
-Group:          Development/Libraries
 Requires:       %{name}%{?_isa} = %{version}-%{release}
 
 %description devel