This internal only method is no longer needed.

src/libstd/sys/windows/fs.rs

@@ -534,9 +534,6 @@ impl FileType {
             self.reparse_tag == c::IO_REPARSE_TAG_SYMLINK ||
             self.reparse_tag == c::IO_REPARSE_TAG_MOUNT_POINT)
     }
-    pub fn is_symlink_dir(&self) -> bool {
-        self.is_symlink() && self.is_dir()
-    }
     pub fn is_reparse_point(&self) -> bool {
         self.attributes & c::FILE_ATTRIBUTE_REPARSE_POINT != 0
     }