Completely remove old hints connected to the execution environment

lib/whistleblower.rb

@@ -1,20 +0,0 @@
-class Whistleblower
-  PLACEHOLDER_REGEXP = /\$(\d)/
-
-  def find_hint(stderr)
-    @execution_environment.hints.detect do |hint|
-      @matches = Regexp.new(hint.regular_expression).match(stderr)
-    end
-  end
-  private :find_hint
-
-  def generate_hint(stderr)
-    if hint = find_hint(stderr)
-      hint.message.gsub(PLACEHOLDER_REGEXP) { @matches[Regexp.last_match(1).to_i] }
-    end
-  end
-
-  def initialize(options = {})
-    @execution_environment = options[:execution_environment]
-  end
-end