Fix compilation after 73980ae4a19d.

src/objects-printer.cc

Index: src/objects-printer.cc
diff --git a/src/objects-printer.cc b/src/objects-printer.cc
index 98ec9c303b0c3b29118e8a687c7afabe6b72b785..ed6841a7201537677765c30e336a954a1bb518b4 100644
--- a/src/objects-printer.cc
+++ b/src/objects-printer.cc
@@ -724,7 +724,6 @@ void TypeFeedbackMetadata::TypeFeedbackMetadataPrint(
   os << "\n - slot_count: " << slot_count();
 
   TypeFeedbackMetadataIterator iter(this);
-  int parameter_index = 0;
   while (iter.HasNext()) {
     FeedbackVectorSlot slot = iter.Next();
     FeedbackVectorSlotKind kind = iter.kind();
@@ -749,7 +748,6 @@ void TypeFeedbackVector::TypeFeedbackVectorPrint(std::ostream& os) {  // NOLINT
     return;
   }
 
-  int parameter_index = 0;
   TypeFeedbackMetadataIterator iter(metadata());
   while (iter.HasNext()) {
     FeedbackVectorSlot slot = iter.Next();