[java-atk-wrapper/wip] JNI: Fix unused warning in jaw_object_set_role

[Magdalen Berns <mberns src gnome org>]

commit b6ffbf7179f6ab857138471bbb397de079944e86
Author: Magdalen Berns <m berns thismagpie com>
Date:   Wed Jun 24 16:02:40 2015 +0100

    JNI: Fix unused warning in jaw_object_set_role
    
    Bug: https://bugzilla.gnome.org/show_bug.cgi?id=751441

 jni/src/jawobject.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)
---
diff --git a/jni/src/jawobject.c b/jni/src/jawobject.c
index 28d91bb..4e07107 100644
--- a/jni/src/jawobject.c
+++ b/jni/src/jawobject.c
@@ -462,13 +462,11 @@ jaw_object_get_role (AtkObject *atk_obj)
 static void
 jaw_object_set_role (AtkObject *atk_obj, AtkRole role)
 {
-  JawObject *jaw_obj = JAW_OBJECT(atk_obj);
   atk_obj->role = role;
-  if (atk_obj != NULL && role)
+  if (atk_obj != NULL && atk_obj->role)
     atk_object_set_role(atk_obj, atk_obj->role);
 }
 
-
 static AtkStateSet*
 jaw_object_ref_state_set (AtkObject *atk_obj)
 {