Remove warnings from stabilized css flags (#6905)

Co-authored-by: Michaël De Boey <[email protected]>

.changeset/v2-remove-unstable-warnings.md

@@ -0,0 +1,9 @@
+---
+"@remix-run/dev": patch
+---
+
+Remove warnings for stabilized flags:
+
+* `unstable_cssSideEffectImports`
+* `unstable_cssModules`
+* `unstable_vanillaExtract`

packages/remix-dev/config.ts

@@ -515,45 +515,6 @@ export async function readConfig(
   }
 
   if (appConfig.future) {
-    if ("unstable_cssModules" in appConfig.future) {
-      logger.warn(
-        "The `future.unstable_cssModules` config option has been removed",
-        {
-          details: [
-            "CSS Modules are now enabled automatically.",
-            "You should remove the `unstable_cssModules` option from your Remix config.",
-          ],
-          key: "unstable_cssModules",
-        }
-      );
-    }
-
-    if ("unstable_cssSideEffectImports" in appConfig.future) {
-      logger.warn(
-        "The `future.unstable_cssSideEffectImports` config option has been removed",
-        {
-          details: [
-            "CSS side-effect imports are now enabled automatically.",
-            "You should remove the `unstable_cssSideEffectImports` option from your Remix config",
-          ],
-          key: "unstable_cssSideEffectImports",
-        }
-      );
-    }
-
-    if ("unstable_vanillaExtract" in appConfig.future) {
-      logger.warn(
-        "The `future.unstable_vanillaExtract` config option has been removed.",
-        {
-          details: [
-            "Vanilla Extract is now enabled automatically.",
-            "You should remove the `unstable_vanillaExtract` option from your Remix config",
-          ],
-          key: "unstable_vanillaExtract",
-        }
-      );
-    }
-
     if (appConfig.future.unstable_postcss !== undefined) {
       logger.warn(
         "The `future.unstable_postcss` config option has been deprecated.",