module: fix kdb's illicit use of struct module_use.

Linus changed the structure, and luckily this didn't compile any more.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Martin Hicks <mort@sgi.com>
diff --git a/kernel/module.c b/kernel/module.c
index be18c3e..bbb1d81 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -536,14 +536,6 @@
 	mod->waiter = current;
 }
 
-/* modules using other modules */
-struct module_use
-{
-	struct list_head source_list;
-	struct list_head target_list;
-	struct module *source, *target;
-};
-
 /* Does a already use b? */
 static int already_uses(struct module *a, struct module *b)
 {
@@ -589,8 +581,7 @@
 /* Module a uses b */
 int use_module(struct module *a, struct module *b)
 {
-	struct module_use *use;
-	int no_warn, err;
+	int err;
 
 	if (b == NULL || already_uses(a, b)) return 1;