Don't set group tags

They are unused in Fedora.

gupnp.spec

@@ -3,7 +3,6 @@ Version:       1.0.0
 Release:       1%{?dist}
 Summary:       A framework for creating UPnP devices & control points
 
-Group:         System Environment/Libraries
 License:       LGPLv2+
 URL:           http://www.gupnp.org/
 Source0:       http://download.gnome.org/sources/%{name}/1.0/%{name}-%{version}.tar.xz
@@ -26,7 +25,6 @@ The GUPnP API is intended to be easy to use, efficient and flexible.
 
 %package devel
 Summary: Development package for gupnp
-Group: Development/Libraries
 Requires: %{name}%{?_isa} = %{version}-%{release}
 
 %description devel
@@ -34,7 +32,6 @@ 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
 * Mon Sep 19 2016 Kalev Lember <klember@redhat.com> - 1.0.0-1
 - Update to 1.0.0
+- Don't set group tags
 
 * Thu Aug 18 2016 Kalev Lember <klember@redhat.com> - 0.99.0-1
 - Update to 0.99.0