Remove obsolete Group tag

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

rubygem-em-socksify.spec

@@ -4,7 +4,6 @@ Name: rubygem-%{gem_name}
 Version: 0.3.0
 Release: 14%{?dist}
 Summary: Transparent proxy support for any EventMachine protocol
-Group: Development/Languages
 License: MIT
 URL: https://github.com/igrigorik/em-socksify
 Source0: https://rubygems.org/gems/%{gem_name}-%{version}.gem
@@ -25,7 +24,6 @@ Transparent proxy support for any EventMachine protocol
 
 %package doc
 Summary: Documentation for %{name}
-Group: Documentation
 Requires: %{name} = %{version}-%{release}
 BuildArch: noarch