nixos/{consul-template,vault-agent}: drop `template` sub-option (#431031)

                          Path to use for the pid file.

                        '';

                      };

                      template = lib.mkOption {

                        default = null;

                        type = with types; nullOr (listOf (attrsOf anything));

                        description =

                          let

                            upstreamDocs =

                              if flavour == "vault-agent" then

                                "https://developer.hashicorp.com/vault/docs/agent/template"

                              else

                                "https://github.com/hashicorp/consul-template/blob/main/docs/configuration.md#templates";

                          in

                          ''

                            Template section of ${flavour}.

                            Refer to <${upstreamDocs}> for supported values.

                          '';

                      };

                    };

                  };