feat: 优化代码

app/src/main/java/io/legado/app/ui/book/read/ReadBookViewModel.kt

@@ -126,7 +126,7 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
                         }
                     }?.onError {
                         toast(R.string.error_load_toc)
-                    } ?: autoChangeSource(book.name, book.author)
+                    }
             }
         }
     }