diff --git a/combo_plugin_gnm/templatetags/gnm.py b/combo_plugin_gnm/templatetags/gnm.py
index 4d4bf15..fd9f641 100644
--- a/combo_plugin_gnm/templatetags/gnm.py
+++ b/combo_plugin_gnm/templatetags/gnm.py
@@ -821,20 +821,6 @@ def gnm_airquality_map(context):
     return context
 
 
-_json_script_escapes = {
-    ord('>'): '\\u003E',
-    ord('<'): '\\u003C',
-    ord('&'): '\\u0026',
-}
-
-
-@register.filter(is_safe=True)
-def json_script(value, element_id):
-    json_str = json.dumps(value, cls=DjangoJSONEncoder)
-    json_str = json_str.replace('>', '\\u003E').replace('<', '\\u003C').replace('&', '\\u0026')
-    return format_html('<script id="{}" type="application/json">{}</script>', element_id, mark_safe(json_str))
-
-
 @register.simple_tag
 def get_goto_cell(page, request):
     try: