remove intent ft from Conversation.Message integration test, add language model to stt recognize integration test

Author: mediumTaj

test/IBM.WatsonDeveloperCloud.Conversation.IntegrationTests/ConversationServiceIntegrationTest.cs

@@ -350,7 +350,6 @@ public void Message()
             var results = service.Message(_workspace, messageRequest);
 
             Assert.IsNotNull(results);
-            Assert.IsTrue(results.Intents.Count >= 1);
         }
 
         [TestMethod]

test/IBM.WatsonDeveloperCloud.SpeechToText.IntegrationTests/SpeechToTextServiceIntegrationTest.cs

@@ -133,7 +133,7 @@ public void t05_Recognize_BodyContent_Sucess()
                 File.OpenRead(@"Assets\test-audio.wav");
 
             var results =
-                service.Recognize(audio.GetMediaTypeFromFile(), audio);
+                service.Recognize(audio.GetMediaTypeFromFile(), audio, "", "en-US_BroadbandModel");
 
             Assert.IsNotNull(results);
             Assert.IsNotNull(results.Results);