Remove obsolete Group tag

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

lzo.spec

@@ -2,7 +2,6 @@ Name:           lzo
 Version:        2.08
 Release:        14%{?dist}
 Summary:        Data compression library with very fast (de)compression
-Group:          System Environment/Libraries
 License:        GPLv2+
 URL:            http://www.oberhumer.com/opensource/lzo/
 Source0:        http://www.oberhumer.com/opensource/lzo/download/%{name}-%{version}.tar.gz
@@ -21,7 +20,6 @@ while still decompressing at this very high speed.
 
 %package minilzo
 Summary:        Mini version of lzo for apps which don't need the full version
-Group:          System Environment/Libraries
 
 %description minilzo
 A small (mini) version of lzo for embedding into applications which don't need
@@ -30,7 +28,6 @@ full blown lzo compression support.
 
 %package devel
 Summary:        Development files for the lzo library
-Group:          Development/Libraries
 Requires:       %{name} = %{version}-%{release}
 Requires:       %{name}-minilzo = %{version}-%{release}
 Requires:       zlib-devel