Staging: i4l: Remove unused variable

Remove unused variable.

This change is made by below coccinelle script:
@@
type T;
identifier i;
constant C;
@@
(
extern T i;
|
- T i;
  <+... when != i
- i = C;
  ...+>
)
Signed-off-by: Sandhya Bankar <bankarsandhya512@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/i4l/act2000/act2000_isa.c

@@ -399,7 +399,6 @@ act2000_isa_download(act2000_card *card, act2000_ddef __user *cb)
 	unsigned int length;
 	int l;
 	int c;
-	long timeout;
 	u_char *b;
 	u_char __user *p;
 	u_char *buf;
@@ -417,7 +416,6 @@ act2000_isa_download(act2000_card *card, act2000_ddef __user *cb)
 	buf = kmalloc(1024, GFP_KERNEL);
 	if (!buf)
 		return -ENOMEM;
-	timeout = 0;
 	while (length) {
 		l = (length > 1024) ? 1024 : length;
 		c = 0;