diff --git a/packages/collector/src/logger.js b/packages/collector/src/logger.js
index 5a5f440cb..82d0da168 100644
--- a/packages/collector/src/logger.js
+++ b/packages/collector/src/logger.js
@@ -106,15 +106,6 @@ exports.getLogger = function getLogger(loggerName, reInitFn) {
   return /** @type {import('@instana/core/src/core').GenericLogger} */ (_logger);
 };
 
-/**
- * @param {import('pino') | *} _logger
- * @returns {boolean}
- */
-function isPino(_logger) {
-  // _logger.hasOwnProperty('pino')
-  return _logger && _logger[Symbol.for('pino.logger')] === true;
-}
-
 /**
  * @param {import('@instana/core/src/core').GenericLogger | *} _logger
  * @returns {boolean}