No need to throw exception hostnameVerifier failure, close AsyncHttpClient#715

Author: Stephane Landelle

providers/netty/src/main/java/org/asynchttpclient/providers/netty/request/NettyConnectListener.java

@@ -109,9 +109,7 @@ public void operationComplete(Future<? super Channel> handshakeFuture) throws Ex
                             writeRequest(channel);
                         } else {
                             abortChannelPreemption(poolKey);
-                            ConnectException exception = new ConnectException("HostnameVerifier exception");
-                            future.abort(exception);
-                            throw exception;
+                            future.abort(new ConnectException("HostnameVerifier exception"));
                         }
                     }
                 }