diff --git a/src.ts/utils/logger.ts b/src.ts/utils/logger.ts
deleted file mode 100644
index 7be3ed5fe..000000000
--- a/src.ts/utils/logger.ts
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
-import { version } from "../_version.js";
-
-import { throwArgumentError } from "./errors.js";
-
-
-export type LogLevel = "debug" | "info" | "warning" | "error" | "off";
-
-const LogLevels: Array<LogLevel> = [ "debug", "info", "warning", "error", "off" ];
-
-
-function defineReadOnly<T, P extends keyof T>(object: T, name: P, value: T[P]): void {
-    Object.defineProperty(object, name, {
-        enumerable: true, writable: false, value,
-    });
-}
-
-export type AssertFunc<T> = () => (undefined | T);
-
-export class Logger {
-    readonly version!: string;
-
-    #logLevel: number;
-
-    constructor(version?: string) {
-        defineReadOnly(this, "version", version || "_");
-        this.#logLevel = 1;
-    }
-
-    get logLevel(): LogLevel {
-        return LogLevels[this.#logLevel];
-    }
-
-    set logLevel(value: LogLevel) {
-        const logLevel = LogLevels.indexOf(value);
-        if (logLevel == null) {
-            throwArgumentError("invalid logLevel", "logLevel", value);
-        }
-        this.#logLevel = logLevel;
-    }
-
-    #log(_logLevel: LogLevel, args: Array<any>): void {
-        const logLevel = LogLevels.indexOf(_logLevel);
-        if (logLevel === -1) {
-            throwArgumentError("invalid log level name", "logLevel", _logLevel);
-        }
-        if (this.#logLevel > logLevel) { return; }
-        console.log.apply(console, args);
-    }
-
-    debug(...args: Array<any>): void {
-        this.#log("debug", args);
-    }
-
-    info(...args: Array<any>): void {
-        this.#log("info", args);
-    }
-
-    warn(...args: Array<any>): void {
-        this.#log("warning", args);
-    }
-}
-
-export const logger = new Logger(version);
-
-
-*/