diff --git a/resources/skins.minerva.scripts/AB.js b/resources/skins.minerva.scripts/AB.js
index ec3312e..fbe03c0 100644
--- a/resources/skins.minerva.scripts/AB.js
+++ b/resources/skins.minerva.scripts/AB.js
@@ -1,31 +1,23 @@
 /*
  * Bucketing wrapper for creating AB-tests.
  *
- * Given a test name, sampling rate, and session ID, provides a class
- * that buckets users into predefined bucket ("control", "A", "B") and
- * starts an AB-test.
+ * Given a test name, sampling rate, and session ID, provides a class that buckets users into
+ * predefined bucket ("control", "A", "B") and starts an AB-test.
  */
-
-( function ( mw, M, mwExperiments ) {
-
+( function ( M, mwExperiments ) {
 	/**
 	 * Buckets users based on params and exposes an `isEnabled` and `getBucket` method.
-	 *
-	 * @param {Object}   config configuration object for AB test.
+	 * @param {Object}   config Configuration object for AB test.
 	 * @param {string}   config.testName
-	 * @param {number}   config.samplingRate sampling rate for the AB-test.
-	 * @param {number}   config.sessionId session ID for user bucketing
-	 * @param {function} [config.onABStart] function that triggers event-logging when user is either
-	 *                                      in bucket A or B.
+	 * @param {number}   config.samplingRate Sampling rate for the AB-test.
+	 * @param {number}   config.sessionId Session ID for user bucketing.
 	 * @constructor
 	 */
 	function AB( config ) {
-
 		var CONTROL_BUCKET = 'control',
 			testName = config.testName,
 			samplingRate = config.samplingRate,
 			sessionId = config.sessionId,
-			onABStart = config.onABStart || function () {},
 			test = {
 				name: testName,
 				enabled: !!samplingRate,
@@ -38,7 +30,6 @@
 
 		/**
 		 * Gets the users AB-test bucket
-		 *
 		 * @return {string} AB-test bucket, CONTROL_BUCKET by default, "A" or "B" buckets otherwise.
 		 */
 		function getBucket() {
@@ -47,26 +38,12 @@
 
 		/**
 		 * Checks whether or not a user is in the AB-test,
-		 *
 		 * @return {boolean}
 		 */
 		function isEnabled() {
 			return getBucket() !== CONTROL_BUCKET;
 		}
 
-		/**
-		 * Initiates the AB-test.
-		 *
-		 * return {void}
-		 */
-		function init() {
-			if ( isEnabled() ) {
-				onABStart( getBucket() );
-			}
-		}
-
-		init();
-
 		return {
 			getBucket: getBucket,
 			isEnabled: isEnabled
@@ -74,5 +51,4 @@
 	}
 
 	M.define( 'skins.minerva.scripts/AB', AB );
-
-}( mw, mw.mobileFrontend, mw.experiments ) );
+}( mw.mobileFrontend, mw.experiments ) );