path_filestat: remove expectation that rights_inheriting describes subdirs

if inheriting rights are for files (not subdirs) then this is incorrect.

if inheriting rights are for subdirs too, then we need to change the
implementation.

crates/test-programs/wasi-tests/src/bin/path_filestat.rs

@@ -9,11 +9,6 @@ unsafe fn test_path_filestat(dir_fd: wasi::Fd) {
         0,
         "the scratch directory should have RIGHT_PATH_FILESTAT_GET as base right",
     );
-    assert_ne!(
-        fdstat.fs_rights_inheriting & wasi::RIGHTS_PATH_FILESTAT_GET,
-        0,
-        "the scratch directory should have RIGHT_PATH_FILESTAT_GET as base right",
-    );
 
     // Create a file in the scratch directory.
     let file_fd = wasi::path_open(