Update startup_scripts/280_custom_links.py

Co-authored-by: Christian Mäder <cimnine@users.noreply.github.com>

Author: MajesticFalcon

startup_scripts/280_custom_links.py

@@ -11,8 +11,7 @@
 
 def get_content_type_id(content_type_str):
   try:
-    id = ContentType.objects.get(model=content_type_str).id
-    return id
+    return ContentType.objects.get(model=content_type_str).id
   except ContentType.DoesNotExist:
     print("⚠️ Error determining content type id for user declared var: {0}".format(content_type_str))