Revert "modules/nixos/monitoring: import matrix-hook template"

This reverts commit d9bb98aa79.

modules/nixos/monitoring/matrix-hook.nix

@@ -34,7 +34,7 @@ in
       MX_HOMESERVER = "https://matrix-client.matrix.org";
       MX_ID = "@nix-community-matrix-bot:matrix.org";
       MX_ROOMID = "!cBybDCkeRlSWfuaFvn:numtide.com";
-      MX_MSG_TEMPLATE = "${./message.html.tmpl}";
+      MX_MSG_TEMPLATE = "${matrixHook}/message.html.tmpl";
     };
     serviceConfig = {
       Type = "simple";

modules/nixos/monitoring/message.html.tmpl

@@ -1,11 +0,0 @@
-<p>
-{{ if eq .Status "firing" }}
-🔥 <strong><font color="#ff0000">FIRING</font></strong>
-{{ else if eq .Status "resolved"}} 
-✅ <strong><font color="#00ff00">RESOLVED</font></strong>
-{{ else	}}
-<strong><font>{{.Status}}</font></strong> "
-{{ end }} <code>[{{.Labels.instance}}]</code> >> <b>{{.Labels.alertname}}</b>
-</br>
-{{.Annotations.description}}
-</p>