Remove obsolete Group tag

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

ykpers.spec

@@ -3,7 +3,6 @@ Version:        1.19.0
 Release:        3%{?dist}
 Summary:        Yubikey personalization program
 
-Group:          Applications/System
 License:        BSD
 URL:            http://opensource.yubico.com/yubikey-personalization/
 Source0:        http://opensource.yubico.com/yubikey-personalization/releases/%{name}-%{version}.tar.gz
@@ -23,7 +22,6 @@ that makes this an easy task.
 
 %package devel
 Summary:        Development files for ykpers
-Group:          Development/Libraries
 Requires:       %{name} = %{version}-%{release}
 
 %description devel