Made the kernel 256 bytes smaller by removing a unused

u_char  bt_scratch_buf[256];
doesn't affect the file-size though :-(

sys/i386/isa/bt742a.c

@@ -12,7 +12,7 @@
  * on the understanding that TFS is not responsible for the correct
  * functioning of this software in any circumstances.
  *
- *      $Id: bt742a.c,v 1.21 1994/08/23 07:52:07 paul Exp $
+ *      $Id: bt742a.c,v 1.22 1994/08/27 16:14:19 davidg Exp $
  */
 
 /*
@@ -315,8 +315,6 @@ struct bt_config {
 #define PAGESIZ		4096
 #define INVALIDATE_CACHE {asm volatile( ".byte	0x0F ;.byte 0x08" ); }
 
-u_char  bt_scratch_buf[256];
-
 struct bt_data {
 	short   bt_base;		/* base port for each board */
 	struct bt_mbx bt_mbx;		/* all our mailboxes */