Remove heap size filter for context disposal garbage collection.

test/unittests/heap/gc-idle-time-handler-unittest.cc

Index: test/unittests/heap/gc-idle-time-handler-unittest.cc
diff --git a/test/unittests/heap/gc-idle-time-handler-unittest.cc b/test/unittests/heap/gc-idle-time-handler-unittest.cc
index 2b476f7dd7e811edf288149d5c125c027a9b313f..04d816fc63202c009d8d28cdd720bec6c5698811 100644
--- a/test/unittests/heap/gc-idle-time-handler-unittest.cc
+++ b/test/unittests/heap/gc-idle-time-handler-unittest.cc
@@ -221,7 +221,6 @@ TEST_F(GCIdleTimeHandlerTest, AfterContextDisposeZeroIdleTime) {
   heap_state.contexts_disposed = 1;
   heap_state.contexts_disposal_rate = 1.0;
   heap_state.incremental_marking_stopped = true;
-  heap_state.size_of_objects = GCIdleTimeHandler::kSmallHeapSize / 2;
   int idle_time_ms = 0;
   GCIdleTimeAction action = handler()->Compute(idle_time_ms, heap_state);
   EXPECT_EQ(DO_FULL_GC, action.type);