JSON lib isn't used

README.md

@@ -24,13 +24,6 @@ the `less-js-source` gem.
 
 *Note: verion 1.1.1 is tagged as 1.1.1.1 on the `less-js-source` gem.*
 
-### JSON
-
-The `json` library is also required but is not explicitly stated as a
-gem dependency. If you're on Ruby 1.8 you'll need to install the
-`json` or `json_pure` gem. On Ruby 1.9, `json` is included in the
-standard library.
-
 ### ExecJS
 
 The [ExecJS](https://github.com/sstephenson/execjs) library is used to automatically choose the best JavaScript engine for your platform. Check out its [README](https://github.com/sstephenson/execjs/blob/master/README.md) for a complete list of supported engines.