[GFS2] [-mm patch] fs/gfs2/: possible cleanups

This patch contains the following possible cleanups:
- make needlessly global code static
- #if 0 unused functions
- remove the following global function that was both unused and
  unimplemented:
  - super.c: gfs2_do_upgrade()

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

fs/gfs2/eaops.h

@@ -21,7 +21,6 @@ struct gfs2_eattr_operations {
 
 unsigned int gfs2_ea_name2type(const char *name, char **truncated_name);
 
-extern struct gfs2_eattr_operations gfs2_user_eaops;
 extern struct gfs2_eattr_operations gfs2_system_eaops;
 
 extern struct gfs2_eattr_operations *gfs2_ea_ops[];