Remove safe_yaml vendored library

Hardcoded safe_yaml requirement breaks Puppet 4.x.
This patch removes dependency on this rubygem.

Resolves: rhbz#1261091

puppet.spec

@@ -19,7 +19,7 @@
 
 Name:           puppet
 Version:        4.2.1
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        A network tool for managing many disparate systems
 License:        ASL 2.0
 URL:            http://puppetlabs.com
@@ -51,7 +51,6 @@ Requires:       ruby(shadow)
 
 Requires:       rubygem(json)
 Requires:       rubygem(pathspec)
-Requires:       rubygem(safe_yaml)
 
 # Prevents jruby from being pulled in by dependencies (BZ #985208)
 Requires:       ruby
@@ -122,7 +121,6 @@ The server can also function as a certificate authority and file server.
 %patch02 -p1 -b .server
 # Unbundle
 rm -r lib/puppet/vendor/*{pathspec,rgen}*
-echo "require 'safe_yaml'" > lib/puppet/vendor/require_vendored.rb
 
 %build
 # Nothing to build
@@ -388,6 +386,9 @@ exit 0
 rm -rf %{buildroot}
 
 %changelog
+* Wed Jul 29 2015 Gael Chamoulaud <gchamoul@redhat.com> - 4.2.1-2
+- Remove usage of vendored library safe_yaml (rhbz#1261091)
+
 * Wed Jul 29 2015 Gael Chamoulaud <gchamoul@redhat.com> - 4.2.1-1
 - Upstream 4.2.1