NFSD: Update comment documenting unsupported fattr4 attributes

TIME_CREATE has been supported since commit e377a3e ("nfsd: Add
support for the birth time attribute").

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

Author: chucklever

fs/nfsd/nfsd.h

@@ -397,14 +397,13 @@ enum {
 #define	NFSD_CB_GETATTR_TIMEOUT		NFSD_DELEGRETURN_TIMEOUT
 
 /*
- * The following attributes are currently not supported by the NFSv4 server:
+ * The following attributes are not implemented by NFSD:
  *    ARCHIVE       (deprecated anyway)
  *    HIDDEN        (unlikely to be supported any time soon)
  *    MIMETYPE      (unlikely to be supported any time soon)
  *    QUOTA_*       (will be supported in a forthcoming patch)
  *    SYSTEM        (unlikely to be supported any time soon)
  *    TIME_BACKUP   (unlikely to be supported any time soon)
- *    TIME_CREATE   (unlikely to be supported any time soon)
  */
 #define NFSD4_SUPPORTED_ATTRS_WORD0                                                         \
 (FATTR4_WORD0_SUPPORTED_ATTRS   | FATTR4_WORD0_TYPE         | FATTR4_WORD0_FH_EXPIRE_TYPE   \