Remove PropertyCell space

src/heap/incremental-marking.cc

Index: src/heap/incremental-marking.cc
diff --git a/src/heap/incremental-marking.cc b/src/heap/incremental-marking.cc
index 648d4c20a0e3b8163193d97f84463b1408187aac..749fa5ef54934d7c2ed3945d8381b4cfd3c2cdcb 100644
--- a/src/heap/incremental-marking.cc
+++ b/src/heap/incremental-marking.cc
@@ -313,7 +313,6 @@ void IncrementalMarking::SetOldSpacePageFlags(MemoryChunk* chunk,
       chunk->SetFlag(MemoryChunk::RESCAN_ON_EVACUATION);
     }
   } else if (chunk->owner()->identity() == CELL_SPACE ||
-             chunk->owner()->identity() == PROPERTY_CELL_SPACE ||
              chunk->scan_on_scavenge()) {
     chunk->ClearFlag(MemoryChunk::POINTERS_TO_HERE_ARE_INTERESTING);
     chunk->ClearFlag(MemoryChunk::POINTERS_FROM_HERE_ARE_INTERESTING);
@@ -360,7 +359,6 @@ void IncrementalMarking::DeactivateIncrementalWriteBarrier() {
   DeactivateIncrementalWriteBarrierForSpace(heap_->old_pointer_space());
   DeactivateIncrementalWriteBarrierForSpace(heap_->old_data_space());
   DeactivateIncrementalWriteBarrierForSpace(heap_->cell_space());
-  DeactivateIncrementalWriteBarrierForSpace(heap_->property_cell_space());
   DeactivateIncrementalWriteBarrierForSpace(heap_->map_space());
   DeactivateIncrementalWriteBarrierForSpace(heap_->code_space());
   DeactivateIncrementalWriteBarrierForSpace(heap_->new_space());
@@ -395,7 +393,6 @@ void IncrementalMarking::ActivateIncrementalWriteBarrier() {
   ActivateIncrementalWriteBarrier(heap_->old_pointer_space());
   ActivateIncrementalWriteBarrier(heap_->old_data_space());
   ActivateIncrementalWriteBarrier(heap_->cell_space());
-  ActivateIncrementalWriteBarrier(heap_->property_cell_space());
   ActivateIncrementalWriteBarrier(heap_->map_space());
   ActivateIncrementalWriteBarrier(heap_->code_space());
   ActivateIncrementalWriteBarrier(heap_->new_space());