Remove all vanished translations

app/languages/qml_zh_CN.ts

@@ -517,10 +517,6 @@
         <source>Your selection to enable remote desktop mouse mode may cause problems in games.</source>
         <translation>启用远程桌面鼠标模式可能会导致游戏出现问题。</translation>
     </message>
-    <message>
-        <source>HDR is not supported with software decoding.</source>
-        <translation type="vanished">软件解码不支持 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>
@@ -990,10 +986,6 @@
         <source>Enable HDR</source>
         <translation>启用HDR</translation>
     </message>
-    <message>
-        <source>Enabling HDR overrides manual decoder selections.</source>
-        <translation type="vanished">启用 HDR 会覆盖自定义解码器的选择。</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>