Merge pull request #1588 from neerajdotname/remove_unused_class_with_symbol_returning

class WithSymbolReturningString is not used anywhere in the test.

actionpack/test/abstract/layouts_test.rb

@@ -87,18 +87,6 @@ def hello
       end
     end
 
-    class WithSymbolReturningString < Base
-      layout :no_hello
-
-      def index
-        render :template => ActionView::Template::Text.new("Hello missing symbol!")
-      end
-    private
-      def no_hello
-        nil
-      end
-    end
-
     class WithSymbolReturningNil < Base
       layout :nilz