Fix BaseStreamRequest error with response not returning an instance of Result

Author: Caitlin Bales (MSFT)

src/main/java/com/microsoft/graph/http/BaseRequest.java

@@ -350,7 +350,7 @@ public IBaseClient getClient() {
      * @return The response type.
      */
     @SuppressWarnings("unchecked")
-	public <T> Class<T> getResponseType() {
-        return (Class<T>) responseClass;
+	public Class getResponseType() {
+        return responseClass;
     }
 }

src/main/java/com/microsoft/graph/requests/extensions/GraphServiceClient.java

@@ -40,7 +40,7 @@ protected GraphServiceClient() {
      * @param responseType The response class to deserialize the response into
      * @return the instance of this builder
      */
-    public CustomRequestBuilder customRequest(final String url, final Class<?> responseType) {
+    public CustomRequestBuilder customRequest(final String url, final Class responseType) {
     	return new CustomRequestBuilder(getServiceRoot() + url, (IGraphServiceClient)this, null, responseType);
     }