Remove useless `matrix_element_call_port` variable

roles/custom/matrix-element-call/defaults/main.yml

@@ -35,9 +35,6 @@ matrix_element_call_container_additional_networks: "{{ matrix_element_call_conta
 matrix_element_call_container_additional_networks_auto: []
 matrix_element_call_container_additional_networks_custom: []
 
-# Ports
-matrix_element_call_port: "8093"
-
 # Traefik Configuration for Element Call
 matrix_element_call_container_labels_traefik_enabled: true
 matrix_element_call_container_labels_traefik_docker_network: "{{ matrix_element_call_container_network }}"