Don't parse subtitle language as language

Fixed: Remove VOSTFR, NL-Subs and Nordic from language parsing (Use release profiles to reject these subtitles if you wish)

Closes #280
Closes #3497

src/NzbDrone.Core/Parser/LanguageParser.cs

@@ -17,7 +17,7 @@ namespace NzbDrone.Core.Parser
                 new RegexReplace(@".*?\.(S\d{2}(?:E\d{2,4})*\..*)", "$1", RegexOptions.Compiled | RegexOptions.IgnoreCase)
             };
 
-        private static readonly Regex LanguageRegex = new Regex(@"(?:\W|_)(?<italian>\b(?:ita|italian)\b)|(?<german>german\b|videomann)|(?<flemish>flemish)|(?<greek>greek)|(?<french>(?:\W|_)(?:FR|VOSTFR)(?:\W|_))|(?<russian>\brus\b)|(?<dutch>nl\W?subs?)|(?<hungarian>\b(?:HUNDUB|HUN)\b)|(?<hebrew>\bHebDub\b)|(?<chinese>\[(?:CH[ST]|BIG5|GB)\]|简|繁|字幕)",
+        private static readonly Regex LanguageRegex = new Regex(@"(?:\W|_)(?<italian>\b(?:ita|italian)\b)|(?<german>german\b|videomann)|(?<flemish>flemish)|(?<greek>greek)|(?<french>(?:\W|_)(?:FR)(?:\W|_))|(?<russian>\brus\b)|(?<hungarian>\b(?:HUNDUB|HUN)\b)|(?<hebrew>\bHebDub\b)|(?<chinese>\[(?:CH[ST]|BIG5|GB)\]|简|繁|字幕)",
                                                                 RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
         private static readonly Regex CaseSensitiveLanguageRegex = new Regex(@"(?<lithuanian>\bLT\b)|(?<czech>\bCZ\b)",
@@ -78,9 +78,6 @@ namespace NzbDrone.Core.Parser
             if (lowerTitle.Contains("norwegian"))
                 return Language.Norwegian;
 
-            if (lowerTitle.Contains("nordic"))
-                return Language.Norwegian;
-
             if (lowerTitle.Contains("finnish"))
                 return Language.Finnish;