GFS2: Remove gl_list from glock structure

The gl_list is no longer used nor needed in the glock structure,
so this patch eliminates it.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>

fs/gfs2/incore.h

@@ -336,7 +336,6 @@ enum {
 };
 
 struct gfs2_glock {
-	struct hlist_bl_node gl_list;
 	unsigned long gl_flags;		/* GLF_... */
 	struct lm_lockname gl_name;
 

fs/gfs2/main.c

@@ -52,7 +52,6 @@ static void gfs2_init_glock_once(void *foo)
 {
 	struct gfs2_glock *gl = foo;
 
-	INIT_HLIST_BL_NODE(&gl->gl_list);
 	spin_lock_init(&gl->gl_lockref.lock);
 	INIT_LIST_HEAD(&gl->gl_holders);
 	INIT_LIST_HEAD(&gl->gl_lru);