Remove onClickLinkListener when activity::onDestroy()

src/main/java/com/kdanmobile/reader/ReaderActivity.kt

@@ -232,6 +232,7 @@ abstract class ReaderActivity : KdanBaseActivity(), ReaderSettingListener, PdfTh
 
     override fun onDestroy() {
         fileCannotOpenDialog?.dismiss()
+        setOnClickLinkListener(null)
         super.onDestroy()
     }