LightSpeed Cache comment should be omitted in special case

[westonruter]

As noted by @milindmore22 in litespeedtech/lscache_wp#212 (comment), a lot of support topics still involve the LightSpeed Cache comment. While waiting for the issue to be fixed upstream, we should be able to resolve it by adding the following (h/t @szepeviktor in litespeedtech/lscache_wp#212 (comment)):

add_filter( 'litespeed_comment', '__return_false' );

Inside this condition:

amp-wp/includes/validation/class-amp-validation-manager.php

Lines 632 to 640 in 76ab0ae

	if ( true === $should_validate_response ) {
	self::add_validation_error_sourcing();
	self::$is_validate_request = true;
	if ( '1' === (string) ini_get( 'display_errors' ) ) {
	// Suppress the display of fatal errors that may arise during validation so that they will not be counted
	// as actual validation errors.
	ini_set( 'display_errors', 0 ); // phpcs:ignore WordPress.PHP.IniSet.display_errors_Blacklisted
	}