Cleanup idle notification tests.

test/cctest/test-heap.cc

Index: test/cctest/test-heap.cc
diff --git a/test/cctest/test-heap.cc b/test/cctest/test-heap.cc
index a4d4be481668964bbc83dff2fa91b690e0dc980f..a6dd83054b27a9f00f067d25cf45327133b859c8 100644
--- a/test/cctest/test-heap.cc
+++ b/test/cctest/test-heap.cc
@@ -1328,35 +1328,6 @@ TEST(CollectingAllAvailableGarbageShrinksNewSpace) {
   CHECK(old_capacity == new_capacity);
 }
 
-// This just checks the contract of the IdleNotification() function,
-// and does not verify that it does reasonable work.
-TEST(IdleNotificationAdvancesIncrementalMarking) {
-  if (!FLAG_incremental_marking || !FLAG_incremental_marking_steps) return;
-  InitializeVM();
-  v8::HandleScope scope;
-  const char* source = "function binom(n, m) {"
-                       "  var C = [[1]];"
-                       "  for (var i = 1; i <= n; ++i) {"
-                       "    C[i] = [1];"
-                       "    for (var j = 1; j < i; ++j) {"
-                       "      C[i][j] = C[i-1][j-1] + C[i-1][j];"
-                       "    }"
-                       "    C[i][i] = 1;"
-                       "  }"
-                       "  return C[n][m];"
-                       "};"
-                       "binom(1000, 500)";
-  {
-    AlwaysAllocateScope aa_scope;
-    CompileRun(source);
-  }
-  intptr_t old_size = HEAP->SizeOfObjects();
-  bool no_idle_work = v8::V8::IdleNotification(900);
-  while (!v8::V8::IdleNotification(900)) ;
-  intptr_t new_size = HEAP->SizeOfObjects();
-  CHECK(no_idle_work || new_size < old_size);
-}
-
 
 static int NumberOfGlobalObjects() {
   int count = 0;