drivers/video/console/fbcon_cw.c: fix compiler warning in cw_update_attr

With make W=1 we get

drivers/video/console/fbcon_cw.c: In function `cw_update_attr':
drivers/video/console/fbcon_cw.c:30:8: warning: variable `t' set but not used [-Wunused-but-set-variable]

fixed by removing as since its used nowhere

Signed-off-by: Devendra Naga <[e-mail]>
Cc: Florian Tobias Schandinat <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/video/console/fbcon_cw.c

···
 {
 	int i, j, offset = (vc->vc_font.height < 10) ? 1 : 2;
 	int width = (vc->vc_font.height + 7) >> 3;
-	u8 c, t = 0, msk = ~(0xff >> offset);
+	u8 c, msk = ~(0xff >> offset);
 
 	for (i = 0; i < vc->vc_font.width; i++) {
 		for (j = 0; j < width; j++) {
···
 				c = ~c;
 			src++;
 			*dst++ = c;
-			t = c;
 		}
 	}
 }