Remove dead CompileOptimized() method from JSFunction.

BUG=
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/181253004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19593 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/objects.h

@@ -7384,9 +7384,6 @@ class JSFunction: public JSObject {
   void MarkForConcurrentOptimization();
   void MarkInOptimizationQueue();
 
-  static bool CompileOptimized(Handle<JSFunction> function,
-                               ClearExceptionFlag flag);
-
   // Tells whether or not the function is already marked for lazy
   // recompilation.
   inline bool IsMarkedForOptimization();