Don't set group tags

They are unused in Fedora.

tracker.spec

@@ -21,7 +21,6 @@ Version:        1.10.0
 Release:        1%{?dist}
 Summary:        Desktop-neutral search tool and indexer
 
-Group:          Applications/System
 License:        GPLv2+
 URL:            https://wiki.gnome.org/Projects/Tracker
 Source0:        https://download.gnome.org/sources/%{name}/1.10/%{name}-%{version}.tar.xz
@@ -110,7 +109,6 @@ all types of files and other first class objects
 
 %package devel
 Summary:        Headers for developing programs that will use %{name}
-Group:          Development/Libraries
 Requires:       %{name}%{?_isa} = %{version}-%{release}
 
 %description devel
@@ -137,7 +135,6 @@ Graphical frontend to tracker configuration.
 
 %package firefox-plugin
 Summary:        A simple bookmark exporter for Tracker
-Group:          User Interface/Desktops
 Requires:       %{name}%{?_isa} = %{version}-%{release}
 
 %description firefox-plugin
@@ -147,7 +144,6 @@ for them for example using tracker-needle.
 %if 0%{?with_nautilus}
 %package nautilus-plugin
 Summary:        Tracker's nautilus plugin
-Group:          User Interface/Desktops
 Requires:       %{name}%{?_isa} = %{version}-%{release}
 
 %description nautilus-plugin
@@ -158,7 +154,6 @@ search in nautilus using tracker is built-in directly in the nautilus package.
 %if 0%{?with_thunderbird}
 %package thunderbird-plugin
 Summary:        Thunderbird extension to export mails to Tracker
-Group:          User Interface/Desktops
 Requires:       %{name}%{?_isa} = %{version}-%{release}
 
 %description thunderbird-plugin
@@ -167,7 +162,6 @@ A simple Thunderbird extension to export mails to Tracker.
 
 %package docs
 Summary:        Documentations for tracker
-Group:          Documentation
 BuildArch:      noarch
 
 %description docs
@@ -343,6 +337,7 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 %changelog
 * Mon Sep 19 2016 Kalev Lember <klember@redhat.com> - 1.10.0-1
 - Update to 1.10.0
+- Don't set group tags
 
 * Thu Sep 15 2016 David King <amigadave@amigadave.com> - 1.9.2-1
 - Update to 1.9.2