Adjust + Cleanup changes.

Indeed, I missed some of the changed that were introduced by #3190.

dump/src/reader/v5/mod.rs

@@ -210,15 +210,11 @@ impl V5IndexReader {
 
             if *task.index_uid().unwrap_or_default().to_string() == name {
                 if updated_at.is_none() {
-                    updated_at = task.updated_at()
+                    updated_at = task.processed_at()
-                }
-
-                if created_at.is_none() {
-                    created_at = task.created_at()
                 }
 
                 if task.id as usize == index_metadata.creation_task_id {
-                    created_at = task.processed_at();
+                    created_at = task.created_at();
 
                     break;
                 }

dump/src/reader/v5/tasks.rs

@@ -179,13 +179,6 @@ impl Task {
             _ => None,
         }
     }
-
-    pub fn updated_at(&self) -> Option<OffsetDateTime> {
-        match self.events.last() {
-            Some(TaskEvent::Created(ts)) => Some(*ts),
-            _ => None,
-        }
-    }
 }
 
 impl IndexUid {