[heap] Remove PromotionMode used by Scavenger

src/heap/heap-inl.h

Index: src/heap/heap-inl.h
diff --git a/src/heap/heap-inl.h b/src/heap/heap-inl.h
index 23e171232d3963e35e01c180c78c0c99b9318f25..a8b98ac36c9ff6d1876b6b7f32e9d5d4fac26fb1 100644
--- a/src/heap/heap-inl.h
+++ b/src/heap/heap-inl.h
@@ -490,30 +490,13 @@ bool Heap::InOldSpaceSlow(Address address) {
   return old_space_->ContainsSlow(address);
 }
 
-template <PromotionMode promotion_mode>
 bool Heap::ShouldBePromoted(Address old_address, int object_size) {
   Page* page = Page::FromAddress(old_address);
   Address age_mark = new_space_->age_mark();
-
-  if (promotion_mode == PROMOTE_MARKED) {
-    MarkBit mark_bit = ObjectMarking::MarkBitFrom(old_address);
-    if (!Marking::IsWhite(mark_bit)) {
-      return true;
-    }
-  }
-
   return page->IsFlagSet(MemoryChunk::NEW_SPACE_BELOW_AGE_MARK) &&
          (!page->ContainsLimit(age_mark) || old_address < age_mark);
 }
 
-PromotionMode Heap::CurrentPromotionMode() {
-  if (incremental_marking()->IsMarking()) {
-    return PROMOTE_MARKED;
-  } else {
-    return DEFAULT_PROMOTION;
-  }
-}
-
 void Heap::RecordWrite(Object* object, int offset, Object* o) {
   if (!InNewSpace(o) || !object->IsHeapObject() || InNewSpace(object)) {
     return;