fix(vue): remove ion-router-outlet

Author: marcjulian

snippets/vue/html.json

@@ -856,11 +856,6 @@
     ],
     "description": "<ion-ripple-effect>"
   },
-  "ion-router-outlet": {
-    "prefix": "i-router-outlet",
-    "body": ["<ion-router-outlet><ion-router-outlet>"],
-    "description": "<ion-router-outlet> should only be used with Angular projects"
-  },
   "ion-row": {
     "prefix": "i-row",
     "body": [