xhci: remove unnecessary check for pending timer

Checking if the command timeout timer is pending when queueing the
first command to the command ring is not really useful, remove it.
Suggested-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/xhci-ring.c

@@ -3815,8 +3815,7 @@ static int queue_command(struct xhci_hcd *xhci, struct xhci_command *cmd,
 	list_add_tail(&cmd->cmd_list, &xhci->cmd_list);
 
 	/* if there are no other commands queued we start the timeout timer */
-	if (xhci->cmd_list.next == &cmd->cmd_list &&
-	    !delayed_work_pending(&xhci->cmd_timer)) {
+	if (xhci->cmd_list.next == &cmd->cmd_list) {
 		xhci->current_cmd = cmd;
 		xhci_mod_cmd_timer(xhci, XHCI_CMD_DEFAULT_TIMEOUT);
 	}