homeassistant: Disable manual mqtt configuration

roles/homeassistant/templates/mqtt.yaml.j2

@@ -1,13 +0,0 @@
----
-sensor:
-{% for shelly in shellies | selectattr("name", "match", "^shellyplug-s-") | list %}
-  - name: Power Usage
-    state_topic: home/{{ shelly["room"] }}/{{ shelly["device"] }}/power
-    unique_id: {{ shelly["name"] }}
-    unit_of_measurement: W
-    device:
-      name: {{ shelly["device"] | capitalize }}
-      suggested_area: {{ shelly["room"] | replace("_", " ") | capitalize }}
-      identifiers:
-        - {{ shelly["name"] }}
-{% endfor %}