Remove unused codes

app/src/main/java/com/hippo/ehviewer/client/EhUrl.java

@@ -221,7 +221,7 @@ public class EhUrl {
         HttpUrl url = HttpUrl.parse(originUrl);
         if (url == null) return originUrl;
         List<String> pathSegments = url.pathSegments();
-        if (pathSegments == null || pathSegments.size() < 3) return originUrl;
+        if (pathSegments.size() < 3) return originUrl;
 
         ListIterator<String> iterator = pathSegments.listIterator(pathSegments.size());
         // The last segments, like