sTRASHo

This plugin lets you remove menu items with drag & drop. It basically simplifies the process of deleting the menus which can be really time consuming if you have a lot of menus. sTRASHo is located in your Appearance > Menus menu.

https://www.youtube.com/watch?v=swz5INhnDr4

1. Upload the plugin folder to the /wp-content/plugins directory.
2. Activate the plugin through the ‘Plugins’ menu in WordPress
3. Go to Appearance > Menus to check sTRASHo