Remove all vanished translations

app/languages/qml_zh_TW.ts

@@ -517,10 +517,6 @@
         <source>Your selection to enable remote desktop mouse mode may cause problems in games.</source>
         <translation>您選取啟動遠端桌面游標模式可能會導致遊戲出現問題。</translation>
     </message>
-    <message>
-        <source>HDR is not supported with software decoding.</source>
-        <translation type="vanished">軟體解碼不支援 HDR。</translation>
-    </message>
     <message>
         <location filename="../streaming/session.cpp" line="967"/>
         <source>Your settings selection to force software decoding may cause poor streaming performance.</source>
@@ -912,10 +908,6 @@
         <source>Enable HDR</source>
         <translation>啟用 HDR</translation>
     </message>
-    <message>
-        <source>Enabling HDR overrides manual decoder selections.</source>
-        <translation type="vanished">啟用 HDR 覆寫手動解碼器選取項目。</translation>
-    </message>
     <message>
         <location filename="../gui/SettingsView.qml" line="1651"/>
         <source>The stream will be HDR-capable, but some games may require an HDR monitor on your host PC to enable HDR mode.</source>