staging: rtl8192e: Remove unsupported mode IW_MODE_REPEAT

Tasklet irq_rx_tasklet is scheduled when hw is receiving frames. Function
_rtl92e_irq_rx_tasklet() is then called which calls then
_rtl92e_rx_normal(). In _rtl92e_rx_normal() all frames are processed by
rtllib_rx(). When ieee->iw_mode is IW_MODE_REPEAT the function returns
0. The calling function then calls: dev_kfree_skb_any() which clears
the skb. So the driver clears all packets received in this mode. Remove
dead code in mode IW_MODE_REPEAT.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/dc6a0ac89970f5b80a552453a9d057c24f53f43b.1691908402.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/rtllib_rx.c

@@ -1496,8 +1496,6 @@ int rtllib_rx(struct rtllib_device *ieee, struct sk_buff *skb,
 	case IW_MODE_INFRA:
 		ret = rtllib_rx_InfraAdhoc(ieee, skb, rx_stats);
 		break;
-	case IW_MODE_REPEAT:
-		break;
 	case IW_MODE_MONITOR:
 		ret = rtllib_rx_Monitor(ieee, skb, rx_stats);
 		break;