Revert "Add natives to check for NULL_VECTOR and NULL_STRING"

core/logic/smn_core.cpp

@@ -759,27 +759,6 @@ static cell_t StoreToAddress(IPluginContext *pContext, const cell_t *params)
 	return 0;
 }
 
-static cell_t IsNullVector(IPluginContext *pContext, const cell_t *params)
-{
-	cell_t *pNullVec = pContext->GetNullRef(SP_NULL_VECTOR);
-	if (!pNullVec)
-		return 0;
-	
-	cell_t *addr;
-	pContext->LocalToPhysAddr(params[1], &addr);
-
-	return addr == pNullVec;
-}
-
-static cell_t IsNullString(IPluginContext *pContext, const cell_t *params)
-{
-	char *str;
-	if (pContext->LocalToStringNULL(params[1], &str) != SP_ERROR_NONE)
-		return 0;
-
-	return str == nullptr;
-}
-
 REGISTER_NATIVES(coreNatives)
 {
 	{"ThrowError",				ThrowError},
@@ -808,7 +787,5 @@ REGISTER_NATIVES(coreNatives)
 	{"RequireFeature",          RequireFeature},
 	{"LoadFromAddress",         LoadFromAddress},
 	{"StoreToAddress",          StoreToAddress},
-	{"IsNullVector",			IsNullVector},
-	{"IsNullString",			IsNullString},
 	{NULL,						NULL},
 };