Don't set group tags

They are unused in Fedora.

gupnp-av.spec

@@ -3,7 +3,6 @@ Version:       0.12.9
 Release:       1%{?dist}
 Summary:       A collection of helpers for building UPnP AV applications
 
-Group:         System Environment/Libraries
 License:       LGPLv2+
 URL:           http://www.gupnp.org/
 Source0:       http://download.gnome.org/sources/gupnp-av/0.12/%{name}-%{version}.tar.xz
@@ -26,7 +25,6 @@ applications using GUPnP.
 
 %package devel
 Summary: Development package for %{name}
-Group: Development/Libraries
 Requires: %{name} = %{version}-%{release}
 Requires: gssdp-devel
 Requires: pkgconfig
@@ -36,7 +34,6 @@ Files for development with %{name}.
 
 %package docs
 Summary: Documentation files for %{name}
-Group: Development/Libraries
 Requires: %{name} = %{version}-%{release}
 BuildArch: noarch
 
@@ -84,6 +81,7 @@ make check %{?_smp_mflags} V=1
 %changelog
 * Wed Oct 12 2016 Kalev Lember <klember@redhat.com> - 0.12.9-1
 - Update to 0.12.9
+- Don't set group tags
 
 * Thu Sep 22 2016 Kalev Lember <klember@redhat.com> - 0.12.8-2
 - BR vala instead of obsolete vala-tools subpackage