Remove useless use of tap

Author: byroot

lib/redis_client.rb

@@ -103,9 +103,9 @@ class Error < StandardError
  include HasConfig
 
  def self.with_config(message, config = nil)
- new(message).tap do |error|
-  error._set_config(config)
- end
+ error = new(message)
+ error._set_config(config)
+ error
  end
  end