Not saving markdown files with "text/markdown" anymore. (#6756)

Author: agr

src/NuGetGallery.Core/Services/CoreLicenseFileService.cs

@@ -42,13 +42,7 @@ public Task SaveLicenseFileAsync(Package package, Stream licenseFile)
 
             var fileName = BuildLicenseFileName(package);
 
-            // Gallery will generally ignore the content type on license files and will use the value from the DB,
-            // but we'll be nice and try to specify correct content type for them.
-            var contentType = package.EmbeddedLicenseType == EmbeddedLicenseFileType.Markdown
-                ? CoreConstants.MarkdownContentType
-                : CoreConstants.TextContentType;
-
-            return _fileStorageService.SaveFileAsync(_metadata.PackageContentFolderName, fileName, contentType, licenseFile, overwrite: true);
+            return _fileStorageService.SaveFileAsync(_metadata.PackageContentFolderName, fileName, CoreConstants.TextContentType, licenseFile, overwrite: true);
         }
 
         public async Task ExtractAndSaveLicenseFileAsync(Package package, Stream packageStream)

tests/NuGetGallery.Core.Facts/Services/CoreLicenseFileServiceFacts.cs

@@ -93,7 +93,7 @@ public async Task WillThrowIfPackageIsMissingNormalizedVersionAndVersion(Embedde
 
             [Theory]
             [InlineData(EmbeddedLicenseFileType.PlainText, "text/plain")]
-            [InlineData(EmbeddedLicenseFileType.Markdown, "text/markdown")]
+            [InlineData(EmbeddedLicenseFileType.Markdown, "text/plain")]
             public async Task WillUseNormalizedRegularVersionIfNormalizedVersionMissing(EmbeddedLicenseFileType licenseFileType, string expectedContentType)
             {
                 var fileStorageSvc = new Mock<ICoreFileStorageService>();