[material-ui][docs] Remove deleted page from the sidenav (#41594)

Author: danilo-leal

docs/data/material/pages.ts

@@ -195,11 +195,6 @@ const pages: MuiPage[] = [
     pathname: '/material-ui/guides',
     title: 'How-to guides',
     children: [
-      {
-        pathname: '/material-ui/guides/material-3-components',
-        title: 'Material Design 3 components',
-        newFeature: true,
-      },
       { pathname: '/material-ui/guides/minimizing-bundle-size' },
       { pathname: '/material-ui/guides/server-rendering' },
       { pathname: '/material-ui/guides/responsive-ui', title: 'Responsive UI' },

docs/translations/translations.json

@@ -235,7 +235,6 @@
     "/material-ui/customization/z-index": "z-index",
     "/material-ui/customization/transitions": "Transitions",
     "/material-ui/guides": "How-to guides",
-    "/material-ui/guides/material-3-components": "Material Design 3 components",
     "/material-ui/guides/minimizing-bundle-size": "Minimizing bundle size",
     "/material-ui/guides/server-rendering": "Server rendering",
     "/material-ui/guides/responsive-ui": "Responsive UI",