Don't print sftptogo_url

app/services/sftp/directory.rb

@@ -6,7 +6,6 @@ module Sftp
   class Directory
     def self.open(path: '/data/survey_responses/', &block)
       sftptogo_url = ENV['SFTPTOGO_URL']
-      puts sftptogo_url
       uri = URI.parse(sftptogo_url)
       Net::SFTP.start(uri.host, uri.user, password: uri.password) do |sftp|
         sftp.dir.foreach(path) do |entry|