Upgrade riot-web (v1.5.14 -> v1.5.15)

roles/matrix-riot-web/defaults/main.yml

@@ -2,7 +2,7 @@ matrix_riot_web_enabled: true
 
 matrix_riot_web_container_image_self_build: false
 
-matrix_riot_web_docker_image: "vectorim/riot-web:v1.5.14"
+matrix_riot_web_docker_image: "vectorim/riot-web:v1.5.15"
 matrix_riot_web_docker_image_force_pull: "{{ matrix_riot_web_docker_image.endswith(':latest') }}"
 
 matrix_riot_web_data_path: "{{ matrix_base_data_path }}/riot-web"

roles/matrix-riot-web/templates/config.json.j2

@@ -32,8 +32,7 @@
 	},
 	{% if matrix_riot_web_jitsi_preferredDomain is not none %}
 	"jitsi": {
-        "preferredDomain": {{ matrix_riot_web_jitsi_preferredDomain|to_json }},
-        "externalApiUrl": "https://{{ matrix_riot_web_jitsi_preferredDomain }}/libs/external_api.min.js"
+        "preferredDomain": {{ matrix_riot_web_jitsi_preferredDomain|to_json }}
     },
 	{% endif %}
 	"branding": {