remoteMarkerTitleHover.js

jQuery(function($){
  	$(document.body).on('markersplaced.wpgmza', () => {
      for(let m in WPGMZA.maps){
        for(let i in WPGMZA.maps[m].markers){
          const marker = WPGMZA.maps[m].markers[i];
          if(marker && marker.googleMarker){
            google.maps.event.addListener(marker.googleMarker, 'mouseover', function (e) {
              if(e && e.domEvent && e.domEvent.target){
                  try{
                    e.domEvent.target.removeAttribute('title');
                    e.domEvent.target.parentElement.removeAttribute('title');
                  } catch(ex) {}
              }
            });
          }
        }
      }
    });
});