Prevent errors from adapters when i18n domains is not used (#11129)

Author: matthewp

.changeset/shy-pets-lie.md

@@ -0,0 +1,5 @@
+---
+"astro": patch
+---
+
+Prevent errors from adapters when i18n domains is not used

packages/astro/src/integrations/features-validation.ts

@@ -70,7 +70,7 @@ export function validateSupportedFeatures(
 	);
 	validationResult.assets = validateAssetsFeature(assets, adapterName, config, logger);
 
-	if (!config.i18n?.domains) {
+	if (config.i18n?.domains) {
 		validationResult.i18nDomains = validateSupportKind(
 			i18nDomains,
 			adapterName,