Remove obsolete unchecked accessors in JSFunction.

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index a758ff37d78bfa1f801e56126edfdf1999063c0e..78b0a783195213e34a5f021f54bc00739b9fa6c5 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -6567,7 +6567,6 @@ class JSFunction: public JSObject {
 
   // [context]: The context for this function.
   inline Context* context();
-  inline Object* unchecked_context();
   inline void set_context(Object* context);
 
   // [code]: The generated code object for this function.  Executed
@@ -6579,8 +6578,6 @@ class JSFunction: public JSObject {
   inline void set_code_no_write_barrier(Code* code);
   inline void ReplaceCode(Code* code);
 
-  inline Code* unchecked_code();
-
   // Tells whether this function is builtin.
   inline bool IsBuiltin();