Remove AUTO_VAR macro and _toString function (#592)

Minecraft.World/EnderCrystal.cpp

@@ -110,12 +110,10 @@ bool EnderCrystal::hurt(DamageSource *source, float damage)
 
 				vector<shared_ptr<Entity> > entities = level->getAllEntities();
 				shared_ptr<EnderDragon> dragon = nullptr;
-				AUTO_VAR(itEnd, entities.end());
-				for (AUTO_VAR(it, entities.begin()); it != itEnd; it++)
+				for ( auto& e : entities )
 				{
-					shared_ptr<Entity> e = *it; //entities->at(i);
 					dragon = dynamic_pointer_cast<EnderDragon>(e);
-					if(dragon != NULL)
+					if ( dragon )
 					{
 						dragon->handleCrystalDestroyed(source);
 						break;