Delete empty group folders?

Could you test this please...

#target Photoshop
app.bringToFront();
main();
function main(){
if(!documents.length) return;
//iterate 5 loops incase of nested layersets
for(var t = 0; t<1;t++){
var LayerSetLayers=[];
var lSets = getLayerSets();
for(var z in lSets){
var lset = getChildIndex(Number(lSets), true );
LayerSetLayers[Number(lSets)] = lset;
}
var emptySets = new Array();
for(var a in lSets){
    if(LayerSetLayers[Number(lSets)].length <1) emptySets.push(getLayerID(Number(lSets)));
    }
    for(var g in emptySets){
      if(selectLayerById(Number(emptySets))) deleteLayer();
        }
    }
};
function getLayerID(IDX){
var ref = new ActionReference();
if(IDX == undefined){
ref.putEnumerated( charIDToTypeID('Lyr '),charIDToTypeID('Ordn'),charIDToTypeID('Trgt') ); 
}else{
    ref.putIndex( charIDToTypeID('Lyr '), IDX );
    }
var desc = executeActionGet(ref);
return desc.getInteger(stringIDToTypeID( 'layerID' ));
};
function selectLayerById(ID, add) {
    add = (add == undefined)  ? add = false : add;
 var ref = new ActionReference();
 ref.putIdentifier(charIDToTypeID('Lyr '), ID);
 var desc = new ActionDescriptor();
 desc.putReference(charIDToTypeID('null'), ref);
 if (add) {
  desc.putEnumerated(stringIDToTypeID('selectionModifier'), stringIDToTypeID('selectionModifierType'), stringIDToTypeID('addToSelection'));
 }
 desc.putBoolean(charIDToTypeID('MkVs'), false);
    try{
 executeAction(charIDToTypeID('slct'), desc, DialogModes.NO);
    return true;
    }catch(e){return false;}
}
function deleteLayer() {
var desc = new ActionDescriptor();
var ref = new ActionReference();
ref.putEnumerated( charIDToTypeID('Lyr '), charIDToTypeID('Ordn'), charIDToTypeID('Trgt') );
desc.putReference( charIDToTypeID('null'), ref );
try{
executeAction( charIDToTypeID('Dlt '), desc, DialogModes.NO );
}catch(e){}
};
function getLayerSets(){ 
   var ref = new ActionReference(); 
   ref.putEnumerated( charIDToTypeID('Dcmn'), charIDToTypeID('Ordn'), charIDToTypeID('Trgt') ); 
   var count = executeActionGet(ref).getInteger(charIDToTypeID('NmbL')) +1; 
   var Lsets=[];
try{
    activeDocument.backgroundLayer;
var i = 0; }catch(e){ var i = 1; };
   for(i;i<count;i++){ 
       if(i == 0) continue;
        ref = new ActionReference(); 
        ref.putIndex( charIDToTypeID( 'Lyr ' ), i );
        var desc = executeActionGet(ref);
        var layerName = desc.getString(charIDToTypeID( 'Nm  ' ));
        if(layerName.match(/^<\/Layer group/) ) continue;
        var layerType = typeIDToStringID(desc.getEnumerationValue( stringIDToTypeID( 'layerSection' )));
        var isLayerSet =( layerType == 'layerSectionContent') ? false:true;
        if(isLayerSet) Lsets.push(i);
   }; 
return Lsets;
};
function getLayerLayerSectionByIndex( index ) {   
   var ref = new ActionReference(); 
   ref.putIndex(charIDToTypeID('Lyr '), index);
   return typeIDToStringID(executeActionGet(ref).getEnumerationValue(stringIDToTypeID('layerSection')));
}; 
function getLayerNameByIndex( index ) { 
    var ref = new ActionReference(); 
    ref.putIndex( charIDToTypeID( 'Lyr ' ), index );
    return executeActionGet(ref).getString(charIDToTypeID( 'Nm  ' ));
};
function skipNestedSets( layerIndex ){
   var isEnd = false;
   layerIndex = app.activeDocument.layers[app.activeDocument.layers.length-1].isBackgroundLayer ? layerIndex-2:layerIndex;
   while(!isEnd){
      layerIndex--;
      if( getLayerLayerSectionByIndex( layerIndex ) == 'layerSectionStart' ) layerIndex = skipNestedSets( layerIndex );
      isEnd = getLayerNameByIndex(layerIndex) == '</Layer group>' ? true:false;
   }
   return layerIndex-1;
};
function getChildIndex(idx, skipNested ){
   var layerSetIndex = idx;
   var isEndOfSet = false;
   var layerIndexArray = [];
   while(!isEndOfSet){
      layerSetIndex--;
      if( getLayerLayerSectionByIndex( layerSetIndex ) == 'layerSectionStart' && skipNested ){
         layerSetIndex = skipNestedSets( layerSetIndex );
      }
  if(getLayerLayerSectionByIndex( layerSetIndex ) == undefined) break;
      isEndOfSet = getLayerNameByIndex(layerSetIndex) == '</Layer group>' ? true:false;
     if(!isEndOfSet ) layerIndexArray.push( layerSetIndex );
   }
   return layerIndexArray;
};
function selectLayerByIndex(index,add){ 
 add = (add == undefined)  ? add = false : add;
 var ref = new ActionReference();
    ref.putIndex(charIDToTypeID('Lyr '), index);
    var desc = new ActionDescriptor();
    desc.putReference(charIDToTypeID('null'), ref );
       if(add) desc.putEnumerated( stringIDToTypeID( 'selectionModifier' ), stringIDToTypeID( 'selectionModifierType' ), stringIDToTypeID( 'addToSelection' ) ); 
      desc.putBoolean( charIDToTypeID( 'MkVs' ), false ); 
   try{
    executeAction(charIDToTypeID('slct'), desc, DialogModes.NO );
}catch(e){}
};