Scripts Dequeuer helps you dequeue WordPress frontend scripts and styles without touching any code. You just need to select scripts and styles from backend and they will be dequeued instantly.
Usage scenario
If you are running a WordPress website with good amount of traffic and expect decent revenue from it, you would be already aware about importance of site speed and performance optimization. A fast loading site can improve traffic and engage more users for you. While optimization can be done in many ways like, using caching plugins, optimized images, using CDN, etc., there are some situations which need a completely different approach.
For example, consider a case in which two different plugins use same CSS files (say, fontawesome CSS) and load them individually. Or consider a case in which two plugins are loading same JavaScript file, say, jQuery validate or jQuery Masonry individually. While WordPress takes very good care of preventing redundant enqueue by checking for same script handle names, such situation may still arise if the script handle names are different.