Remove bobthecow/Ruler (#1191)

README.md

@@ -434,7 +434,6 @@ Please see [CONTRIBUTING](https://github.com/ziadoz/awesome-php/blob/master/CONT
 * [Patchwork](http://patchwork2.org/) - A library for redefining userland functions.
 * [Pipeline](https://github.com/thephpleague/pipeline) - A pipeline pattern implementation.
 * [Porter](https://github.com/ScriptFUSION/Porter) - Data import abstraction library for consuming Web APIs and other data sources.
-* [Ruler](https://github.com/bobthecow/Ruler) - A simple stateless production rules engine.
 * [RulerZ](https://github.com/K-Phoen/rulerz) - A powerful rule engine and implementation of the Specification pattern.
 
 ### Debugging and Profiling