diff --git a/extension.json b/extension.json
index cdbdaed72..e7c6df3e1 100644
--- a/extension.json
+++ b/extension.json
@@ -1027,7 +1027,6 @@
 		"SpecialNotificationsFormatter": "includes/formatters/SpecialNotificationsFormatter.php",
 		"SpecialNotificationsMarkRead": "includes/special/SpecialNotificationsMarkRead.php",
 		"SuppressionMaintenanceTest": "tests/phpunit/maintenance/SupressionMaintenanceTest.php",
-		"TestDiscussionParser": "maintenance/testDiscussionParser.php",
 		"UpdateEchoSchemaForSuppression": "maintenance/updateEchoSchemaForSuppression.php",
 		"EchoUpdatePerUserBlacklist": "maintenance/updatePerUserBlacklist.php"
 	}
diff --git a/maintenance/testDiscussionParser.php b/maintenance/testDiscussionParser.php
deleted file mode 100644
index d24eeaf59..000000000
--- a/maintenance/testDiscussionParser.php
+++ /dev/null
@@ -1,83 +0,0 @@
-<?php
-
-$IP = getenv( 'MW_INSTALL_PATH' );
-if ( $IP === false ) {
-	$IP = __DIR__ . '/../../..';
-}
-require_once "$IP/maintenance/Maintenance.php";
-
-class TestDiscussionParser extends Maintenance {
-	public function __construct() {
-		parent::__construct();
-		$this->mDescription = "Takes enwiki revision IDs and attempts to identify interested users";
-
-		$this->addArg( 'revisions', 'Revision IDs, separated by commas', true /*required*/ );
-
-		$this->requireExtension( 'Echo' );
-	}
-
-	public function execute() {
-		$apiURL = 'http://en.wikipedia.org/w/api.php';
-
-		$revisions = explode( ',', $this->getArg( 0 ) );
-
-		// Retrieve original revisions and their predecessors
-		$requestData = [
-			'format' => 'php',
-			'action' => 'query',
-			'prop' => 'revisions',
-			'revids' => implode( '|', $revisions ),
-		];
-
-		$originalData = Http::post(
-			$apiURL,
-			[
-				'postData' => $requestData,
-			]
-		);
-
-		$data = unserialize( $originalData );
-
-		$pages = $data['query']['pages'];
-
-		foreach ( $pages as $page ) {
-			if ( count( $page['revisions'] ) !== 1 ) {
-				continue;
-			}
-
-			$revid = $page['revisions'][0]['revid'];
-
-			$newRequest = [
-				'format' => 'php',
-				'action' => 'query',
-				'prop' => 'revisions',
-				'titles' => $page['title'],
-				'rvstartid' => $revid,
-				'rvlimit' => 2,
-				'rvprop' => 'ids|content|user',
-			];
-
-			$newData = Http::post(
-				$apiURL,
-				[
-					'postData' => $newRequest,
-				]
-			);
-
-			$newData = unserialize( $newData );
-
-			$pageData = reset( $newData['query']['pages'] );
-			$oldText = isset( $pageData['revisions'][1] )
-				? trim( $pageData['revisions'][1]['*'] ) . "\n"
-				: '';
-			$newText = trim( $pageData['revisions'][0]['*'] ) . "\n";
-			$user = $pageData['revisions'][0]['user'];
-
-			print "http://en.wikipedia.org/w/index.php?diff=prev&oldid=$revid\n";
-			EchoDiscussionParser::getInterestedUsers( $oldText, $newText, $user ); // FIXME: getInterestedUsers() is undefined
-		}
-	}
-}
-
-$maintClass = TestDiscussionParser::class;
-require_once RUN_MAINTENANCE_IF_MAIN;