remove isolation check on timeout

Author: beepster4096

src/shims/windows/sync.rs

@@ -378,10 +378,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> {
         let timeout_time = if timeout_ms == this.eval_windows("c", "INFINITE")?.to_u32()? {
             None
         } else {
-            this.check_no_isolation("`SleepConditionVariableSRW` with non-infinite timeout")?;
-
             let duration = Duration::from_millis(timeout_ms.into());
-
             Some(this.machine.clock.now().checked_add(duration).unwrap())
         };