Removed dup code from jailer/env/clone()

There were no differences between the x86_64 and the aarch64 versions
of the clone sys call.

Signed-off-by: seafoodfry <[email protected]>

src/jailer/src/env.rs

@@ -80,9 +80,7 @@ fn dup2(old_fd: libc::c_int, new_fd: libc::c_int) -> Result<(), JailerError> {
 // manner to the fork syscall. The libc wrapper prevents use of a NULL stack pointer, so we will
 // call the syscall directly.
 fn clone(child_stack: *mut libc::c_void, flags: libc::c_int) -> Result<libc::c_int, JailerError> {
-    // Clone parameters order is different between x86_64 and aarch64.
-    #[cfg(target_arch = "x86_64")]
-    return SyscallReturnCode(
+    SyscallReturnCode(
         // SAFETY: This is safe because we are using a library function with valid parameters.
         libc::c_int::try_from(unsafe {
             libc::syscall(libc::SYS_clone, flags, child_stack, 0, 0, 0)
@@ -91,18 +89,7 @@ fn clone(child_stack: *mut libc::c_void, flags: libc::c_int) -> Result<libc::c_i
         .unwrap(),
     )
     .into_result()
-    .map_err(JailerError::Clone);
-    #[cfg(target_arch = "aarch64")]
-    return SyscallReturnCode(
-        // SAFETY: This is safe because we are using a library function with valid parameters.
-        libc::c_int::try_from(unsafe {
-            libc::syscall(libc::SYS_clone, flags, child_stack, 0, 0, 0)
-        })
-        // Unwrap is needed because PIDs are 32-bit.
-        .unwrap(),
-    )
-    .into_result()
-    .map_err(JailerError::Clone);
+    .map_err(JailerError::Clone)
 }
 
 #[derive(Debug, thiserror::Error)]