Remove useless `noqa var-naming` comment and too many blank lines at the end of the file

roles/custom/matrix-synapse-admin/defaults/main.yml

@@ -53,7 +53,7 @@ matrix_synapse_admin_container_labels_traefik_tls_certResolver: default  # noqa
 # Each IP address should be in CIDR format, e.g. xxx.xxx.xxx.xxx/xx.
 # For more information, see: https://doc.traefik.io/traefik/middlewares/http/ipallowlist/
 # If the list is empty, all IP addresses are allowed.
-matrix_synapse_admin_container_labels_traefik_ipallowlist_sourcerange: []  # noqa var-naming
+matrix_synapse_admin_container_labels_traefik_ipallowlist_sourcerange: []
 
 # Controls which additional headers to attach to all HTTP responses.
 # To add your own headers, use `matrix_synapse_admin_container_labels_traefik_additional_response_headers_custom`
@@ -220,4 +220,3 @@ matrix_synapse_admin_config_asManagedUsers_custom: []  # noqa var-naming
 # Example for mautrix-telegram: ["^@telegram_[a-zA-Z0-9]+:example\\.com$"]
 # WARNING: you want to use matrix_synapse_admin_config_asManagedUsers_custom instead of this variable.
 matrix_synapse_admin_config_asManagedUsers: "{{ matrix_synapse_admin_config_asManagedUsers_auto + matrix_synapse_admin_config_asManagedUsers_custom }}"  # noqa var-naming
-