refactor: remove redundant admin checks from pages (now handled by router)

src/pages/sincronizar_clientes_tryton.vue

@@ -141,11 +141,6 @@
         result: null,
       }
     },
-    mounted() {
-      if (!this.authStore.isAdmin) {
-        this.$router.push('/');
-      }
-    },
     methods: {
       formatItems(ids) {
         if (!ids || ids.length === 0) return [];