Revert "全局tts引擎变化后也要改变"

This reverts commit 4100f4fe7870826a72b99a8ed8b83825eb95055d.

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

@@ -108,7 +108,6 @@ class ReadAloudConfigDialog : DialogFragment() {
                         postEvent(EventBus.MEDIA_BUTTON, false)
                     }
                 }
-                PreferKey.ttsEngine -> upSpeakEngineSummary()
             }
         }