Rollup merge of rust-lang#150533 - uefi-fs-rmdirall, r=ChrisDenton

std: sys: fs: uefi: Implement remove_dir_all

- Using the implementation from sys::fs::common since UEFI does not have a built-in for this functionality.

@rustbot label +O-UEFI

Author: matthiaskrgr

library/std/src/sys/fs/uefi.rs

@@ -6,7 +6,7 @@ use crate::fs::TryLockError;
 use crate::hash::Hash;
 use crate::io::{self, BorrowedCursor, IoSlice, IoSliceMut, SeekFrom};
 use crate::path::{Path, PathBuf};
-pub use crate::sys::fs::common::Dir;
+pub use crate::sys::fs::common::{Dir, remove_dir_all};
 use crate::sys::pal::{helpers, unsupported};
 use crate::sys::time::SystemTime;
 
@@ -489,10 +489,6 @@ pub fn rmdir(p: &Path) -> io::Result<()> {
     }
 }
 
-pub fn remove_dir_all(_path: &Path) -> io::Result<()> {
-    unsupported()
-}
-
 pub fn exists(path: &Path) -> io::Result<bool> {
     let f = uefi_fs::File::from_path(path, r_efi::protocols::file::MODE_READ, 0);
     match f {