import mapping is not longer needed

nicegui/templates/index.html

@@ -19,7 +19,6 @@
     <script src="{{ prefix | safe }}/_nicegui/{{version}}/static/vue.global.prod.js"></script>
     <script src="{{ prefix | safe }}/_nicegui/{{version}}/static/quasar.umd.prod.js"></script>
     <script src="{{ prefix | safe }}/_nicegui/{{version}}/static/quasar.{{ language }}.umd.prod.js"></script>
-    {{ import_maps | safe }}
 
     <!-- NOTE: force Prettier to keep the line break -->
     {{ body_html | safe }}