feat: remove integrity attribute from demo script in layout

shared/includes/layout/js.html

@@ -10,7 +10,7 @@
 <!-- END GLOBAL MANDATORY SCRIPTS -->
 
 <!-- BEGIN DEMO SCRIPTS -->
-<script src="{{ page | relative }}/preview/js/demo{% if environment != 'development' %}.min{% endif %}.js{% if environment != 'development' %}?{{ 'now' | date: '%s' }}{% endif %}" defer{% if environment == 'preview' %} integrity="{{ sri.demo-js }}"{% endif %}></script>
+<script src="{{ page | relative }}/preview/js/demo{% if environment != 'development' %}.min{% endif %}.js{% if environment != 'development' %}?{{ 'now' | date: '%s' }}{% endif %}" defer></script>
 <!-- END DEMO SCRIPTS -->
  
 {% scripts %}