Strictly disable instantiation of AllStatic class

src/allocation.h

Index: src/allocation.h
diff --git a/src/allocation.h b/src/allocation.h
index 7c1e023b8646f8a258d715bbedb70ddd31f8e844..8581cc9e9d75679aaaa78e43eecba859aa5eaf86 100644
--- a/src/allocation.h
+++ b/src/allocation.h
@@ -45,12 +45,12 @@ class Embedded {
 #endif
 
 
-// Superclass for classes only using statics.
+// Superclass for classes only using static method functions.
+// The subclass of AllStatic cannot be instantiated at all.
 class AllStatic {
 #ifdef DEBUG
  public:
-  void* operator new(size_t size);
-  void operator delete(void* p);
+  AllStatic() = delete;
 #endif
 };