Revert "[Turbopack] fix effects tracing (#72928)"

This reverts commit 0714c45.

turbopack/crates/turbo-tasks/src/effect.rs

@@ -174,16 +174,12 @@ impl Eq for Effects {}
 impl Effects {
     /// Applies all effects that have been captured by this struct.
     pub async fn apply(&self) -> Result<()> {
-        let span = tracing::info_span!("apply effects", count = self.effects.len());
-        async move {
-            let mut first_error = anyhow::Ok(());
-            for effect in self.effects.iter() {
-                apply_effect(effect, &mut first_error).await;
-            }
-            first_error
+        let _span = tracing::info_span!("apply effects", count = self.effects.len());
+        let mut first_error = anyhow::Ok(());
+        for effect in self.effects.iter() {
+            apply_effect(effect, &mut first_error).await;
         }
-        .instrument(span)
-        .await
+        first_error
     }
 }