remove extra line

Author: fbvilela

lib/zendesk_api/client.rb

@@ -143,8 +143,6 @@ def self.check_deprecated_namespace_usage(attributes, name)
     # Retry middleware if retry is true
     def build_connection
       Faraday.new(config.options) do |builder|
-        builder.request :multipart
-
         # response
         builder.use ZendeskAPI::Middleware::Response::RaiseError
         builder.use ZendeskAPI::Middleware::Response::Callback, self