Remove obsolete Group tag

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

libusbmuxd.spec

@@ -3,7 +3,6 @@ Version:       1.0.10
 Release:       10%{?dist}
 Summary:       Client library USB multiplex daemon for Apple's iOS devices
 
-Group:         System Environment/Libraries
 License:       LGPLv2+
 URL:           http://www.libimobiledevice.org/
 Source0:       http://www.libimobiledevice.org/downloads/%{name}-%{version}.tar.bz2
@@ -19,7 +18,6 @@ to be accessed simultaneously.
 
 %package utils
 Summary: Utilities for communicating with Apple's iOS devices
-Group: Applications/System
 License: GPLv2+
 Requires: %{name}%{?_isa} = %{version}-%{release}
 
@@ -28,7 +26,6 @@ Utilities for Apple's iOS devices
 
 %package devel
 Summary: Development package for %{name}
-Group: Development/Libraries
 Requires: %{name}%{?_isa} = %{version}-%{release}
 Obsoletes: usbmuxd-devel < 1.0.9