i810: delete useless variable

Delete a variable that is at most only assigned to a constant, but never
used otherwise.

A simplified version of the semantic patch that fixes this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
type T;
identifier i;
constant c;
@@

-T i;
<... when != i
-i = c;
...>
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/video/i810/i810_main.c b/drivers/video/i810/i810_main.c
index 038192a..bb674e4 100644
--- a/drivers/video/i810/i810_main.c
+++ b/drivers/video/i810/i810_main.c
@@ -2011,9 +2011,7 @@
 	struct fb_info    *info;
 	struct i810fb_par *par = NULL;
 	struct fb_videomode mode;
-	int i, err = -1, vfreq, hfreq, pixclock;
-
-	i = 0;
+	int err = -1, vfreq, hfreq, pixclock;
 
 	info = framebuffer_alloc(sizeof(struct i810fb_par), &dev->dev);
 	if (!info)