Revert "quic: Clear waited_next in NonIdempotentDataQueueReader"

This reverts commit 2a4c30a.

Author: martenrichter

src/dataqueue/queue.cc

@@ -434,13 +434,7 @@ class NonIdempotentDataQueueReader final
     CHECK(!data_queue_->is_idempotent());
   }
 
-  ~NonIdempotentDataQueueReader() {
-    if (waited_next_) {
-      std::move(waited_next_)(
-          bob::Status::STATUS_EOS, nullptr, 0, [](uint64_t) {});
-    }
-    data_queue_->reader_destructed(this);
-  }
+  ~NonIdempotentDataQueueReader() { data_queue_->reader_destructed(this); }
 
   // Disallow moving and copying.
   NonIdempotentDataQueueReader(const NonIdempotentDataQueueReader&) = delete;