feat: 优化代码

app/src/main/java/io/legado/app/service/help/ReadBook.kt

@@ -333,7 +333,6 @@ object ReadBook {
                 book.durChapterTime = System.currentTimeMillis()
                 book.durChapterIndex = durChapterIndex
                 book.durChapterPos = durPageIndex
-                book.lastCheckCount = 0
                 App.db.bookChapterDao().getChapter(book.bookUrl, durChapterIndex)?.let {
                     book.durChapterTitle = it.title
                 }