[heap] Remove unused step_size_in_bytes in AdvanceIncrementalMarking.

src/heap/memory-reducer.cc

Index: src/heap/memory-reducer.cc
diff --git a/src/heap/memory-reducer.cc b/src/heap/memory-reducer.cc
index f53730785a80fcc3bcd73063f50f7471841fdecd..699e10e603ee7565de71e5f2784367201cf80092 100644
--- a/src/heap/memory-reducer.cc
+++ b/src/heap/memory-reducer.cc
@@ -84,10 +84,10 @@ void MemoryReducer::NotifyTimer(const Event& event) {
       double deadline = heap()->MonotonicallyIncreasingTimeInMs() +
                         kIncrementalMarkingDelayMs;
       heap()->incremental_marking()->AdvanceIncrementalMarking(
-          0, deadline, i::IncrementalMarking::StepActions(
-                           i::IncrementalMarking::NO_GC_VIA_STACK_GUARD,
-                           i::IncrementalMarking::FORCE_MARKING,
-                           i::IncrementalMarking::FORCE_COMPLETION));
+          deadline, i::IncrementalMarking::StepActions(
+                        i::IncrementalMarking::NO_GC_VIA_STACK_GUARD,
+                        i::IncrementalMarking::FORCE_MARKING,
+                        i::IncrementalMarking::FORCE_COMPLETION));
       heap()->FinalizeIncrementalMarkingIfComplete(
           "Memory reducer: finalize incremental marking");
     }