simplify media info strings

src/strings/zh-tw.json

@@ -647,7 +647,6 @@
     "LabelIconMaxHeightHelp": "通過 upnp:icon 的圖示最大解析度。",
     "CopyStreamURL": "複製串流連結",
     "MediaInfoDefault": "預設",
-    "MediaInfoStreamTypeAudio": "音訊",
     "LabelDateAddedBehaviorHelp": "若原本就有中繼資料，將會優先使用。",
     "LabelScreensaver": "螢幕保護程式：",
     "LabelSeasonNumber": "季：",
@@ -821,10 +820,6 @@
     "LabelVideoBitrate": "影片位元率：",
     "MediaInfoSize": "大小",
     "MediaInfoTimestamp": "時間戳",
-    "MediaInfoStreamTypeData": "檔案",
-    "MediaInfoStreamTypeEmbeddedImage": "內嵌語言",
-    "MediaInfoStreamTypeSubtitle": "字幕",
-    "MediaInfoStreamTypeVideo": "影片",
     "Menu": "選單",
     "MetadataManager": "中繼資料管理器",
     "MessageNoPluginConfiguration": "這個附加元件沒有選項可供更改。",