Revert "roles/appserver: enable traefik logging"

This reverts commit 0cbbbfe2f2.

roles/appserver.nix

@@ -38,20 +38,6 @@ in
       package = pkgsUnstable.traefik;
 
       staticConfigOptions = {
-        log = {
-          level = "INFO";
-        };
-
-        accessLog = {
-          format = "json";
-          fields = {
-            defaultMode = "keep";
-          };
-          fields.headers = {
-            defaultMode = "keep";
-          };
-        };
-
         entryPoints = {
           web = {
             address = ":80";