Worker#unregister_worker shouldn't call done_working

unregister_worker faulty increments Stat[:processed] by calling done_working

Author: ctrochalakis

lib/resque/worker.rb

@@ -312,8 +312,6 @@ def register_worker
 
     # Unregisters ourself as a worker. Useful when shutting down.
     def unregister_worker
-      done_working
-
       redis.srem(:workers, self)
       redis.del("worker:#{self}:started")
 

test/worker_test.rb

@@ -226,4 +226,9 @@
       assert_equal 1, Resque.workers.size
     end
   end
+
+  test "Processed jobs count" do
+    @worker.work(0)
+    assert_equal 1, Resque.info[:processed]
+  end
 end