Remove hacks for GC stress builders from cctests.

test/cctest/test-parsing.cc

Index: test/cctest/test-parsing.cc
diff --git a/test/cctest/test-parsing.cc b/test/cctest/test-parsing.cc
index 999fe4c5bdbeb6d1c7e67895a0d85a8803645b7b..2b9adf83818b8ccf14c2b6eaad4ffaf267fc977f 100644
--- a/test/cctest/test-parsing.cc
+++ b/test/cctest/test-parsing.cc
@@ -1263,10 +1263,6 @@ TEST(ParserSync) {
     NULL
   };
 
-  // TODO(mstarzinger): Disabled in GC stress mode for now, we should find the
-  // correct timeout for this and re-enable this test again.
-  if (i::FLAG_stress_compaction) return;
-
   i::Isolate* isolate = i::Isolate::Current();
   i::Factory* factory = isolate->factory();