How to delete specific layers?

Hi Dave,

The script work for you? how to run it? i try to run the script on AI 2019 no response....
Please advice

Thanks in advance

not ideal but it works...

// Batch remove layer from files
// Qwertyfly
// 17-4-2015


// -------------------- WARNING ------------------------------------------------------------------------------
// this will overwrite files - make sure you have made copies of the files before running
//------------------------------------------------------------------------------------------------------------------


// these variables need to be updated before running
var workingDirectory = '~/Desktop/~~~Crap/tst';  // Add folder to process here
var fileType = 'ai';  // make sure you update the file type here
var layerToRemove = 'guides'; // and here is the layer you wish removed


var reg = new RegExp("\.("+fileType+")$", 'i'); 
var dir = Folder(workingDirectory);
var files = dir.getFiles(reg);
var log = files.length + ' Files Processed \n';
for(var i = 0; i < files.length; i++){
    var file = File(dir + '/' + files.name);

    var doc = app.open(file); 
    try{
        app.activeDocument.layers.getByName(layerToRemove).remove();
        log += files.name + ' - "'+layerToRemove+'" Layer removed \n';

    }
    catch(err){
       log += files.name + ' - Has no "'+layerToRemove+'" Layer \n';

    }
    doc.close();
    doc = null
}


txtlog = new File(workingDirectory + '/textlog.txt');
var isopen = txtlog.open("w"); //open file for editing  
if (isopen)//test file is open  
{  
   txtlog.seek(0,0);   
   txtlog.write(log);   
   txtlog.close();  
}  

app.activeDocument.layers.getByName('guides').remove();

or you could act on all open docs.

for(var i = 0; i < app.documents.length; i++){

    app.documents.layers.getByName('guides').remove();

}

the scipt to work on a folder is a bit more work...