Remove superfluous hostName etc. options

modules/os.nix

@@ -11,21 +11,6 @@ in
       type = types.path;
     };
 
-    hostName = mkOption {
-      type = types.str;
-      default = null;
-    };
-
-    # domain = mkOption {
-    #   type = types.str;
-    #   default = "local";
-    # };
-
-    # searchDomains = mkOption {
-    #   type = types.listOf types.str;
-    #   default = [ cfg.domain ];
-    # };
-
     cert = mkOption {
       type = types.attrs;
       default = null;
@@ -53,13 +38,6 @@ in
     users.extraUsers.root.openssh.authorizedKeys.keys =
       cfg.adminAuthorizedKeys;
 
-    networking = {
-      hostName = cfg.hostName;
-      # domain = cfg.domain;
-      # search = cfg.searchDomains;
-      extraHosts = cfg.extraHosts;
-    };
-
    security.pki.certificateFiles = [ pki.ca.cert ];
     boot.kernel.sysctl = {
       "kernel.mm.transparent_hugepage.enabled" = "never";