test: remove unused parameter

PR-URL: #17184 Reviewed-By: Benjamin Gruenbaum <[email protected]> Reviewed-By: Michaël Zasso <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Gireesh Punathil <[email protected]> Reviewed-By: James M Snell <[email protected]>

Author: fdescamps

test/sequential/test-readline-interface.js

@@ -97,9 +97,7 @@ FakeInput.prototype.end = () =>{};
  crlfDelay
 });
 letcallCount=0;
-rli.on('line',function(line){
-callCount++;
-});
+rli.on('line',()=>callCount++);
 fi.emit('data','\r');
 setTimeout(common.mustCall(()=>{
 fi.emit('data','\n');