std::fs::DirEntry.metadata(): prefer use of lstat() on Emscripten

Align it with musl, which also prefers using lstat() here.

Author: kleisauke

library/std/src/sys/pal/unix/fs.rs

@@ -8,14 +8,12 @@ mod tests;
 use libc::c_char;
 #[cfg(any(
     all(target_os = "linux", not(target_env = "musl")),
-    target_os = "emscripten",
     target_os = "android",
     target_os = "hurd"
 ))]
 use libc::dirfd;
 #[cfg(any(
     all(target_os = "linux", not(target_env = "musl")),
-    target_os = "emscripten",
     target_os = "hurd"
 ))]
 use libc::fstatat64;
@@ -893,7 +891,6 @@ impl DirEntry {
     #[cfg(all(
         any(
             all(target_os = "linux", not(target_env = "musl")),
-            target_os = "emscripten",
             target_os = "android",
             target_os = "hurd"
         ),
@@ -922,7 +919,6 @@ impl DirEntry {
     #[cfg(any(
         not(any(
             all(target_os = "linux", not(target_env = "musl")),
-            target_os = "emscripten",
             target_os = "android",
             target_os = "hurd",
         )),