filer: remove replication, collection, disk_type info from entry metadata

these metadata can change and are not used

weed/mount/weedfs_file_mkrm.go

@@ -58,16 +58,14 @@ func (wfs *WFS) Mknod(cancel <-chan struct{}, in *fuse.MknodIn, name string, out
 		Name:        name,
 		IsDirectory: false,
 		Attributes: &filer_pb.FuseAttributes{
-			Mtime:       now,
-			Crtime:      now,
-			FileMode:    uint32(fileMode),
-			Uid:         in.Uid,
-			Gid:         in.Gid,
-			Collection:  wfs.option.Collection,
-			Replication: wfs.option.Replication,
-			TtlSec:      wfs.option.TtlSec,
-			Rdev:        in.Rdev,
-			Inode:       inode,
+			Mtime:    now,
+			Crtime:   now,
+			FileMode: uint32(fileMode),
+			Uid:      in.Uid,
+			Gid:      in.Gid,
+			TtlSec:   wfs.option.TtlSec,
+			Rdev:     in.Rdev,
+			Inode:    inode,
 		},
 	}