removed comment

lib/single-file/html-images-minifier.js

@@ -22,8 +22,6 @@
 
 this.imagesMinifier = this.imagesMinifier || (() => {
 
-	// const EMPTY_IMAGE = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
-
 	return {
 		process: (doc, options) => {
 			const imageGroups = getImageGroups(doc);