Removed coffee matchers

spec/teaspoon_env.rb

@@ -38,7 +38,7 @@ Teaspoon.configure do |config|
 
     # Specify a file matcher as a regular expression and all matching files will be loaded when the suite is run. These
     # files need to be within an asset path. You can add asset paths using the `config.asset_paths`.
-    suite.matcher = "{spec/javascripts,app/assets}/**/*_spec.{js,js.coffee,coffee,js.es6,es6}"
+    suite.matcher = "{spec/javascripts,app/assets}/**/*_spec.{js,js.es6,es6}"
 
     # Load additional JS files, but requiring them in your spec helper is the preferred way to do this.
     # suite.javascripts = []