heap: Remove redundant check for deserialization_complete

Change-Id: I9d135e2add4f6ae7b0b19b97081ec40096ff75b2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3708026Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Jianxiao Lu <jianxiao.lu@intel.com>
Cr-Commit-Position: refs/heads/main@{#81215}

src/heap/heap.cc

@@ -1902,9 +1902,7 @@ bool Heap::CollectGarbage(AllocationSpace space,
           (committed_memory_before > committed_memory_after + MB) ||
           HasHighFragmentation(used_memory_after, committed_memory_after);
       event.committed_memory = committed_memory_after;
-      if (deserialization_complete_) {
-        memory_reducer_->NotifyMarkCompact(event);
-      }
+      memory_reducer_->NotifyMarkCompact(event);
       if (initial_max_old_generation_size_ < max_old_generation_size() &&
           used_memory_after < initial_max_old_generation_size_threshold_) {
         set_max_old_generation_size(initial_max_old_generation_size_);