How to remove the SCAYT plugin in CKEditor 4?

A free version of SpellCheckAsYouType (SCAYT) is provided as a plugin, integrated by default into CKEditor WYSIWYG editor. To remove the SCAYT plugin from CKEditor 4, add the following line to your CKEditor config.js file:

config.removePlugins = 'scayt';

If you want to leave the SCAYT plugin for CKEditor 4 available, but prevent it from being turned on automatically on loading the editor, set the config.scayt_autoStartup configuration setting as false. This is the default value for CKEditor configuration.

config.scayt_autoStartup = false;