nfsd: remove three unused NFS4_ACE_* defines

These flag bits aren't used by either the protocol or our
implementation, so I don't know why they were here.

Thanks to Johann Dahm for running across these.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Cc: Johann Dahm <jdahm@umich.edu>

include/linux/nfs4.h

@@ -65,9 +65,6 @@
 #define NFS4_ACE_SUCCESSFUL_ACCESS_ACE_FLAG   0x00000010
 #define NFS4_ACE_FAILED_ACCESS_ACE_FLAG       0x00000020
 #define NFS4_ACE_IDENTIFIER_GROUP             0x00000040
-#define NFS4_ACE_OWNER                        0x00000080
-#define NFS4_ACE_GROUP                        0x00000100
-#define NFS4_ACE_EVERYONE                     0x00000200
 
 #define NFS4_ACE_READ_DATA                    0x00000001
 #define NFS4_ACE_LIST_DIRECTORY               0x00000001