Remove obsolete Group tag

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

rubygem-redcarpet.spec

@@ -4,7 +4,6 @@ Name: rubygem-%{gem_name}
 Version: 3.3.2
 Release: 12%{?dist}
 Summary: A fast, safe and extensible Markdown to (X)HTML parser
-Group: Development/Languages
 # https://github.com/vmg/redcarpet/issues/502
 License: MIT and ISC
 URL: http://github.com/vmg/redcarpet
@@ -21,7 +20,6 @@ A fast, safe and extensible Markdown to (X)HTML parser.
 
 %package doc
 Summary: Documentation for %{name}
-Group: Documentation
 Requires: %{name} = %{version}-%{release}
 BuildArch: noarch