Remove obsolete Group tag

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

compat-lua.spec

@@ -2,7 +2,6 @@ Name:           compat-lua
 Version:        5.1.5
 Release:        11%{?dist}
 Summary:        Powerful light-weight programming language (compat version)
-Group:          Development/Languages
 License:        MIT
 URL:            http://www.lua.org/
 Source0:        http://www.lua.org/ftp/lua-%{version}.tar.gz
@@ -28,7 +27,6 @@ This package contains a compatibility version of the lua-5.1 libraries.
 
 %package devel
 Summary:        Development files for %{name}
-Group:          System Environment/Libraries
 Requires:       %{name}-libs%{?_isa} = %{version}-%{release}
 
 %description devel