Remove unnecessary hocon require, add write_conf method

lib/puppet/provider/hocon_setting/ruby.rb

@@ -5,8 +5,6 @@
   require 'hocon/config_value_factory'
 end
 
-require File.expand_path('../../../util/config_saver', __FILE__)
-
 Puppet::Type.type(:hocon_setting).provide(:ruby) do
   def self.namevar(section_name, setting)
     "#{setting}"
@@ -18,13 +16,13 @@ def exists?
 
   def create
     conf_file_modified = set_value(resource[:value])
-    Puppet::Util::ConfigSaver.save(resource[:path], conf_file_modified)
+    write_conf(conf_file_modified)
     @conf_file = nil
   end
 
   def destroy
     conf_file_modified = conf_file.remove_value(setting)
-    Puppet::Util::ConfigSaver.save(resource[:path], conf_file_modified)
+    write_conf(conf_file_modified)
     @conf_file = nil
   end
 
@@ -50,7 +48,7 @@ def value
 
   def value=(new_value)
     conf_file_modified = set_value(new_value)
-    Puppet::Util::ConfigSaver.save(resource[:path], conf_file_modified)
+    write_conf(conf_file_modified)
     @conf_file = nil
   end
 
@@ -70,6 +68,13 @@ def conf_file
     @conf_file ||= Hocon::Parser::ConfigDocumentFactory.parse_file(file_path)
   end
 
+  def write_conf(conf)
+    File.open(file_path, 'w+') do |fh|
+      config_string = conf.render
+      fh.puts(config_string)
+    end
+  end
+
   def conf_object
     if @conf_file.nil? && (not File.exist?(file_path))
       File.new(file_path, "w")