staging: r8188eu: remove a comment from usbctrl_vendorreq()

Remove an unnecessary comment from usbctrl_vendorreq().
Co-developed-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Link: https://lore.kernel.org/r/20210924122705.3781-6-fmdefrancesco@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/hal/usb_ops_linux.c

@@ -70,10 +70,8 @@ static int usbctrl_vendorreq(struct intf_hdl *intf, u16 value, void *data, u16 l
 			} else {
 				/* status != len && status >= 0 */
 				if (status > 0) {
-					if (requesttype == REALTEK_USB_VENQT_READ) {
-						/*  For Control read transfer, we have to copy the read data from io_buf to data. */
+					if (requesttype == REALTEK_USB_VENQT_READ)
 						memcpy(data, io_buf,  len);
-					}
 				}
 			}