Revert of Correctly set ScriptState in the image loader microtask

Source/core/dom/Microtask.h

Index: Source/core/dom/Microtask.h
diff --git a/Source/core/dom/Microtask.h b/Source/core/dom/Microtask.h
index b4db32f776883ee46d38af5204992aa9c9617d5d..ceec178f852b0e271744747402cbd9f1fe1bff81 100644
--- a/Source/core/dom/Microtask.h
+++ b/Source/core/dom/Microtask.h
@@ -43,10 +43,6 @@
 public:
     static void performCheckpoint();
     static bool performingCheckpoint(v8::Isolate*);
-
-    // TODO(jochen): Make all microtasks pass in the ScriptState they want to be
-    // executed in. Until then, all microtasks have to keep track of their
-    // ScriptState themselves.
     static void enqueueMicrotask(PassOwnPtr<WebThread::Task>);
     static void enqueueMicrotask(PassOwnPtr<Closure>);