remove sdk.

Author: David

articles/cognitive-services/Speech-Service/includes/how-to/speech-to-text-basics/speech-to-text-basics-javascript.md

@@ -97,14 +97,14 @@ Reference the `AudioConfig` object as follows:
 
 ```javascript
 const audioConfig = AudioConfig.fromDefaultMicrophoneInput();
-const recognizer = new sdk.SpeechRecognizer(speechConfig, audioConfig);
+const recognizer = new SpeechRecognizer(speechConfig, audioConfig);
 ```
 
 If you want to provide an audio file instead of using a microphone, you'll still need to provide an `audioConfig`. However, this can only be done when targeting **Node.js** and when you create an [`AudioConfig`](https://docs.microsoft.com/javascript/api/microsoft-cognitiveservices-speech-sdk/audioconfig?view=azure-node-latest), instead of calling `fromDefaultMicrophoneInput`, you'll call `fromWavFileOutput` and pass the `filename` parameter.
 
 ```javascript
 const audioConfig = AudioConfig.fromWavFileInput("YourAudioFile.wav");
-const recognizer = new sdk.SpeechRecognizer(speechConfig, audioConfig);
+const recognizer = new SpeechRecognizer(speechConfig, audioConfig);
 ```
 
 ## Recognize speech