Remove comment

Author: Ndiritu

components/http/okHttp/src/main/java/com/microsoft/kiota/http/OkHttpRequestAdapter.java

@@ -902,10 +902,8 @@ public long contentLength() throws IOException {
 
                                 @Override
                                 public void writeTo(@Nonnull BufferedSink sink) throws IOException {
-                                    // stored in variable before writing to the sink due to
-                                    // available()'s definition
                                     long contentLength = contentLength();
-                                    if (contentLength() > 0) {
+                                    if (contentLength > 0) {
                                         requestInfo.content.mark((int) contentLength);
                                     }
                                     sink.writeAll(Okio.source(requestInfo.content));