Update translation files

Updated by "Remove blank strings" hook in Weblate.

Translation: Gramophone/App
Translate-URL: https://hosted.weblate.org/projects/gramophone/strings-xml/

Author: weblate

app/src/main/res/values-zh-rCN/strings.xml

@@ -270,7 +270,6 @@
     <string name="device_type_unknown">未知设备</string>
     <string name="device_type_builtin_speaker">内置扬声器</string>
     <string name="device_type_usb_headset">USB 耳麦</string>
-    <string name="device_type_dock"></string>
     <string name="device_type_aux_line">AUX 线</string>
     <string name="device_type_bluetooth_a2dp">蓝牙 A2DP</string>
     <string name="device_type_ble_speaker">BLE 扬声器</string>