[inspector] added check that context always survives inspected context

src/inspector/inspected-context.h

Index: src/inspector/inspected-context.h
diff --git a/src/inspector/inspected-context.h b/src/inspector/inspected-context.h
index 443f4a1425734fc350041390a5e6a3b5779a7fc2..36f53fcee2901784ee73f284659cec15275ab344 100644
--- a/src/inspector/inspected-context.h
+++ b/src/inspector/inspected-context.h
@@ -41,9 +41,6 @@ class InspectedContext {
  private:
   friend class V8InspectorImpl;
   InspectedContext(V8InspectorImpl*, const V8ContextInfo&, int contextId);
-  static void weakCallback(const v8::WeakCallbackInfo<InspectedContext>&);
-  static void consoleWeakCallback(
-      const v8::WeakCallbackInfo<InspectedContext>&);
 
   V8InspectorImpl* m_inspector;
   v8::Global<v8::Context> m_context;