Divi Theme - Remove extra image sizes

functions.php

/**
 * Remove extra image sizes
 *
 * @param array $sizes Array of image sizes.
 */
function cpdivi_remove_extra_image_sizes( $sizes ) {
	unset( $sizes['et-pb-post-main-image'] );
	unset( $sizes['et-pb-post-main-image-fullwidth'] );
	unset( $sizes['et-pb-portfolio-image'] );
	unset( $sizes['et-pb-portfolio-module-image'] );
	unset( $sizes['et-pb-portfolio-image-single'] );
	unset( $sizes['et-pb-gallery-module-image-portrait'] );
	unset( $sizes['et-pb-post-main-image-fullwidth-large'] );
	unset( $sizes['medium_large'] );
	unset( $sizes['1536x1536'] );
	unset( $sizes['2048x2048'] );
	unset( $sizes['et-pb-image--responsive--desktop'] );
	unset( $sizes['et-pb-image--responsive--tablet'] );
	unset( $sizes['et-pb-image--responsive--phone'] );
	return $sizes;
}
add_action( 'intermediate_image_sizes_advanced', 'cpdivi_remove_extra_image_sizes' );