The W3C Type Attribute Warnings Removal plugin will remove type attribute from script and style tags added by WordPress.
This will overcome the SEO ( Search engine optimization ) issues also. By removing these warning. Please check your validation errors and warning by the validator tool . https://validator.w3.org/nu/ and remove and make your website errors and warnings free from the web validator. The type attribute warnings occur if the website is not build the codes as per the W3C validation.
These warning will show in the validator with below titles these errors can be rectify by adding this plugin on your wordpress website.
The type attribute for the style element is not needed and should be omitted.
Review the below link or download the plugin