test: remove error message

PR-URL: https://github.com/nodejs/node/pull/15983
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/pummel/test-net-connect-memleak.js

@@ -26,10 +26,10 @@ const common = require('../common');
 const assert = require('assert');
 const net = require('net');
 
+console.log('Run this test with --expose-gc');
 assert.strictEqual(
   typeof global.gc,
-  'function',
-  'Run this test with --expose-gc'
+  'function'
 );
 net.createServer(function() {}).listen(common.PORT);