staging: rtl8192e: Drop cast on void pointer

Void pointers need not be cast to other pointer types.
Semantic patch used:

@r@
expression x;
void *e;
type T;
identifier f;
@@

(
  *((T *)e)
|
  ((T *)x) [...]
|
  ((T *)x)->f
|
- (T *)
  e
)

Signed-off-by: Janani Ravichandran <janani.rvchndrn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/rtl8192e/rtl_core.c

@@ -2401,7 +2401,7 @@ static int _rtl92e_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 
 static irqreturn_t _rtl92e_irq(int irq, void *netdev)
 {
-	struct net_device *dev = (struct net_device *) netdev;
+	struct net_device *dev = netdev;
 	struct r8192_priv *priv = rtllib_priv(dev);
 	unsigned long flags;
 	u32 inta;