ENGCOM-4733: only trigger livereload by .css files #22276

 - Merge Pull Request #22276 from torhoehn/magento2:feature/grunt-watch-trigger-fix
 - Merged commits:
   1. 066a68f

Author: magento-engcom-team

dev/tools/grunt/configs/watch.js

@@ -11,11 +11,8 @@ var combo  = require('./combo'),
 
 var themeOptions = {};
 
-_.each(themes, function(theme, name) {
+_.each(themes, function (theme, name) {
     themeOptions[name] = {
-        'options': {
-            livereload: true
-        },
         'files': [
             '<%= combo.autopath(\''+name+'\', path.pub) %>/**/*.less'
         ],