Remove test artifact (#511)

inference-engine/tests_deprecated/unit/inference_engine_tests/local_test.cpp

@@ -240,6 +240,7 @@ protected:
         } else {
             InferenceEngine::NetPass::UnrollRNN_if(net, [] (const RNNCellBase& rnn) -> bool { return true; });
             net.serialize("UnrollRNN_if.xml");
+            EXPECT_EQ(0, std::remove("UnrollRNN_if.xml"));
             auto lstmcell_layer = dynamic_pointer_cast<ClampLayer>(net.getLayerByName("LSTMCell:split_clip"));
 
             float ref_coeff = 0.2f;