refactor(vite): disable hmr for child compiler (#8108)

Co-authored-by: Hiroshi Ogawa <hi.ogawa.zz@gmail.com>

packages/remix-dev/vite/plugin.ts

@@ -625,11 +625,7 @@ export const remixVitePlugin: RemixVitePlugin = (options = {}) => {
           ...viteUserConfig,
           mode: viteConfig.mode,
           server: {
-            ...viteUserConfig.server,
-            // when parent compiler runs in middleware mode to support
-            // custom servers, we don't want the child compiler also
-            // run in middleware mode as that will cause websocket port conflicts
-            middlewareMode: false,
+            hmr: false,
           },
           configFile: false,
           envFile: false,
@@ -651,15 +647,6 @@ export const remixVitePlugin: RemixVitePlugin = (options = {}) => {
                   plugin.name !== "remix" &&
                   plugin.name !== "remix-hmr-updates"
               ),
-            {
-              name: "no-hmr",
-              handleHotUpdate() {
-                // parent vite server is already sending HMR updates
-                // do not send duplicate HMR updates from child server
-                // which log confusing "page reloaded" messages that aren't true
-                return [];
-              },
-            },
           ],
         });
         await viteChildCompiler.pluginContainer.buildStart({});