Remove obsolete Group tag

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

rubygem-rspec-its.spec

@@ -4,7 +4,6 @@ Name: rubygem-%{gem_name}
 Version: 1.2.0
 Release: 3%{?dist}
 Summary: Provides "its" method formerly part of rspec-core
-Group: Development/Languages
 License: MIT
 URL: https://github.com/rspec/rspec-its
 Source0: https://rubygems.org/gems/%{gem_name}-%{version}.gem
@@ -34,7 +33,6 @@ RSpec extension gem for attribute matching.
 
 %package doc
 Summary: Documentation for %{name}
-Group: Documentation
 Requires: %{name} = %{version}-%{release}
 BuildArch: noarch