audit: push loginuid and sessionid processing down

Since we are always current, we can push a lot of this stuff to the
bottom and get rid of useless interfaces and arguments.

Signed-off-by: Eric Paris <eparis@redhat.com>
diff --git a/kernel/audit.c b/kernel/audit.c
index bf1e133..79b42fd1 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -727,7 +727,7 @@
 		if (err == 1) {
 			err = 0;
 			if (msg_type == AUDIT_USER_TTY) {
-				err = tty_audit_push_task(current);
+				err = tty_audit_push_current();
 				if (err)
 					break;
 			}