fixed selector removal

lib/single-file/css-rules-minifier.js

@@ -95,7 +95,7 @@ this.cssRulesMinifier = this.cssRulesMinifier || (() => {
 			}
 		}
 		for (let selector = cssRule.prelude.children.head; selector; selector = selector.next) {
-			if (!ruleInfo.selectorsText.includes(cssTree.generate(selector.data))) {
+			if (!ruleInfo.matchedSelectors.has(cssTree.generate(selector.data))) {
 				removedSelectors.push(selector);
 			}
 		}