modules/nixos: remove comin

modules/nixos/common/comin.nix

@@ -1,17 +0,0 @@
-{ inputs, ... }:
-{
-  imports = [ inputs.comin.nixosModules.comin ];
-
-  services.comin = {
-    enable = true;
-    remotes = [
-      {
-        url = "https://github.com/nix-community/infra.git";
-        name = "origin";
-        poller.period = 300; # every 5 minutes
-        branches.main.name = "master";
-        branches.testing.name = ""; # disable testing branch
-      }
-    ];
-  };
-}

modules/nixos/common/default.nix

@@ -6,7 +6,6 @@
 }:
 {
   imports = [
-    ./comin.nix
     ../../shared/known-hosts.nix
     ../../shared/nix-daemon.nix
     ./reboot.nix