Revert "GFS2: Fix use-after-free bug on umount"

This reverts commit 78802499912f1ba31ce83a94c55b5a980f250a43.

The original patch is causing problems in relation to order of
operations at umount in relation to jdata files. I need to fix
this a different way.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/super.h b/fs/gfs2/super.h
index 4d2492b..f6b8b00 100644
--- a/fs/gfs2/super.h
+++ b/fs/gfs2/super.h
@@ -25,6 +25,8 @@
 	return x;
 }
 
+void gfs2_jindex_free(struct gfs2_sbd *sdp);
+
 struct gfs2_jdesc *gfs2_jdesc_find(struct gfs2_sbd *sdp, unsigned int jid);
 int gfs2_jdesc_check(struct gfs2_jdesc *jd);
 
@@ -32,7 +34,6 @@
 			      struct gfs2_inode **ipp);
 
 int gfs2_make_fs_rw(struct gfs2_sbd *sdp);
-int gfs2_make_fs_ro(struct gfs2_sbd *sdp);
 
 int gfs2_statfs_init(struct gfs2_sbd *sdp);
 void gfs2_statfs_change(struct gfs2_sbd *sdp,