[Files.app] Update the filelist on delete-only filechange event

ui/file_manager/file_manager/foreground/js/directory_model.js

Index: ui/file_manager/file_manager/foreground/js/directory_model.js
diff --git a/ui/file_manager/file_manager/foreground/js/directory_model.js b/ui/file_manager/file_manager/foreground/js/directory_model.js
index 205d75177463cfb77733c2722b82d28642555578..addab3f2b0957fc1565772451db2c639327c8fa3 100644
--- a/ui/file_manager/file_manager/foreground/js/directory_model.js
+++ b/ui/file_manager/file_manager/foreground/js/directory_model.js
@@ -183,6 +183,8 @@ DirectoryModel.prototype.onWatcherDirectoryChanged_ = function(event) {
         this.currentDirContents_.prefetchMetadata(entries, true, function() {
           this.rescanSoon(false);
         }.bind(this));
+      } else {
+        this.rescanSoon(false);
       }
     }.bind(this)).catch(function(error) {
       console.error('Error in proceeding the changed event.', error,