Remove mention of directory arguments (#1921)

docs/user-guide/working-directory.md

@@ -16,16 +16,12 @@ Its behavior is the same as [Terraform's behavior](https://developer.hashicorp.c
   - If you want to refer to the file in the original working directory, it is recommended to pass the absolute path using realpath(1) etc. e.g. `tflint --config=$(realpath .tflint.hcl)`.
 - The `path.cwd` represents the original working directory. This is the same behavior as using `--chdir` in Terraform.
 
-TFLint also accepts a directory as an argument, but `--chdir` is recommended in most cases. The directory argument is deprecated and may be removed in a future version.
-
 The `--recursive` flag enables recursive inspection. This is the same as running with `--chdir` for each directory.
 
 ```console
 $ tflint --recursive
 ```
 
-It takes no arguments in recursive mode. Passing a directory or file name will result in an error.
-
 These flags are also valid for `--init` and `--version`. Recursive init is required when installing required plugins all at once:
 
 ```console