staging: r8188eu: remove unused defines

Remove some unused defines from usb_ops_linux.h.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> # Edimax N150
Link: https://lore.kernel.org/r/20230124210108.62170-4-martin@kaiser.cxSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/include/usb_ops_linux.h

@@ -6,11 +6,6 @@
 
 #define VENDOR_CMD_MAX_DATA_LEN	254
 
-#define RTW_USB_CONTROL_MSG_TIMEOUT_TEST	10/* ms */
 #define RTW_USB_CONTROL_MSG_TIMEOUT	500/* ms */
 
-#define MAX_USBCTRL_VENDORREQ_TIMES	10
-
-#define RTW_USB_BULKOUT_TIME	5000/* ms */
-
 #endif