Remove dead code: sample detection, media info pipeline, subtitles, raw disk

Removed entire sample detection chain (DetectSample, NotSampleSpecification)
— games don't have sample files. Simplified callers to skip sample checks.

Removed UpdateMediaInfoService and its consumers — was a no-op after
FFMpeg removal but still injected in DiskScanService and FileNameBuilder.

Removed AugmentQualityFromMediaInfo — used video resolution from
MediaInfo which is never populated for games.

Removed RawDiskSpecification — rejected Blu-ray/DVD patterns but also
falsely rejected valid game ISOs.

Gutted MediaInfo token registration in FileNameBuilder — tokens still
registered (for naming format compat) but resolve to empty immediately.

Removed hardcoded subtitle parsing (HardcodedSubsRegex, ParseHardcodeSubs,
HardcodedSubs property) — games don't have hardcoded subtitles.

Removed XbmcMetadata movie remnants (watched/playcount/lastplayed/top250).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: claude

src/NzbDrone.Core.Test/DecisionEngineTests/RawDiskSpecificationFixture.cs

@@ -283,10 +283,6 @@ public void should_delete_folder_if_files_were_imported_and_only_sample_files_re
                   .Setup(s => s.Import(It.IsAny<List<ImportDecision>>(), true, null, ImportMode.Auto))
                   .Returns(imported.Select(i => new ImportResult(i)).ToList());
 
-            Mocker.GetMock<IDetectSample>()
-                  .Setup(s => s.IsSample(It.IsAny<GameMetadata>(),
-                      It.IsAny<string>()))
-                  .Returns(DetectSampleResult.Sample);
 
             Subject.ProcessRootFolder(new DirectoryInfo(_droneFactory));
 
@@ -352,10 +348,6 @@ public void should_not_delete_if_there_is_large_rar_file()
                   .Setup(s => s.Import(It.IsAny<List<ImportDecision>>(), true, null, ImportMode.Auto))
                   .Returns(imported.Select(i => new ImportResult(i)).ToList());
 
-            Mocker.GetMock<IDetectSample>()
-                  .Setup(s => s.IsSample(It.IsAny<GameMetadata>(),
-                      It.IsAny<string>()))
-                  .Returns(DetectSampleResult.Sample);
 
             Mocker.GetMock<IDiskProvider>()
                   .Setup(s => s.GetFiles(It.IsAny<string>(), true))
@@ -459,10 +451,6 @@ public void should_not_delete_if_no_files_were_imported()
                   .Setup(s => s.Import(It.IsAny<List<ImportDecision>>(), true, null, ImportMode.Auto))
                   .Returns(new List<ImportResult>());
 
-            Mocker.GetMock<IDetectSample>()
-                  .Setup(s => s.IsSample(It.IsAny<GameMetadata>(),
-                      It.IsAny<string>()))
-                  .Returns(DetectSampleResult.Sample);
 
             Mocker.GetMock<IDiskProvider>()
                   .Setup(s => s.GetFileSize(It.IsAny<string>()))