diff --git a/django/db/backends/mysql/introspection.py b/django/db/backends/mysql/introspection.py
index e2d382b895..0cad8d9b9d 100644
--- a/django/db/backends/mysql/introspection.py
+++ b/django/db/backends/mysql/introspection.py
@@ -182,5 +182,4 @@ class DatabaseIntrospection(BaseDatabaseIntrospection):
         # Convert the sorted sets to lists
         for constraint in constraints.values():
             constraint['columns'] = list(constraint['columns'])
-        # Return
         return constraints