fix(values): the custom secret is not needed here

kustomization.yaml

@@ -40,10 +40,3 @@ helmCharts:
     dags:
       gitSync:
         enabled: false
-    secret:
-    - envName: "AIRFLOW_CONN_CUSTOM"
-      secretName: "custom-connection"
-      secretKey: "AIRFLOW_CONN_CUSTOM"
-    extraSecrets:
-      custom-connection:
-        data: "AIRFLOW_CONN_CUSTOM: 'my-conn-type://login:password@host:port/schema?param1=val1&param2=val2'"