message: daemon: drop fs_type() dependency
diff: @@ -18,13 +18,14 @@ use std::str::FromStr;
  use std::sync::Arc;
  use std::time::Duration;
  -use fuse_rs::abi::linux_abi::Attr;
  -use fuse_rs::api::filesystem::*;
  -use fuse_rs::api::{BackendFileSystem, BackendFileSystemType};
  use nix::unistd::{getegid, geteuid};
  use serde::Deserialize;
  use std::time::SystemTime;
  +use fuse_rs::abi::linux_abi::Attr;
  +use fuse_rs::api::filesystem::*;
  +use fuse_rs::api::BackendFileSystem;
  +
  use crate::io_stats::{self, FopRecorder, StatsFop::*};
  use crate::metadata::{Inode, RafsInode, RafsSuper, RAFS_DEFAULT_BLOCK_SIZE};
  use crate::storage::*;
  @@ -432,10 +433,6 @@ impl BackendFileSystem for Rafs {
  Ok((entry, self.sb.get_max_ino()))
  }
  - fn fstype(&self) -> BackendFileSystemType {
  - BackendFileSystemType::Rafs
  - }
  -
  fn as_any(&self) -> &dyn Any {
  self
  }
  