remove unused behvavior cruft in xfs_super.h

#include <linux/exportfs.h>

#ifdef CONFIG_XFS_DMAPI

# define vfs_insertdmapi(vfs)	vfs_insertops(vfsp, &xfs_dmops)

# define vfs_initdmapi()	dmapi_init()

# define vfs_exitdmapi()	dmapi_uninit()

#else

# define vfs_insertdmapi(vfs)	do { } while (0)

# define vfs_initdmapi()	do { } while (0)

# define vfs_exitdmapi()	do { } while (0)

#endif

#ifdef CONFIG_XFS_QUOTA

# define vfs_insertquota(vfs)	vfs_insertops(vfsp, &xfs_qmops)

extern void xfs_qm_init(void);

extern void xfs_qm_exit(void);

# define vfs_initquota()	xfs_qm_init()

# define vfs_exitquota()	xfs_qm_exit()

#else

# define vfs_insertquota(vfs)	do { } while (0)

# define vfs_initquota()	do { } while (0)

# define vfs_exitquota()	do { } while (0)

#endif