Update custom skill for simplified chunk index

Author: jelledruyts

src/Azure.AISearch.FunctionApp.DotNet/ChunkEmbedPush.cs

@@ -88,7 +88,6 @@ public async Task<IActionResult> Run([HttpTrigger(AuthorizationLevel.Anonymous,
                             ContentVector = embedding,
                             SourceDocumentId = record.Data.DocumentId,
                             SourceDocumentTitle = record.Data.Title,
-                            SourceDocumentContentField = record.Data.FieldName,
                             SourceDocumentFilePath = record.Data.FilePath
                         };
                         documentChunks.Add(documentChunk);

src/Azure.AISearch.FunctionApp.DotNet/Models/DocumentChunk.cs

@@ -7,6 +7,5 @@ public class DocumentChunk
     public IReadOnlyList<float>? ContentVector { get; set; }
     public string? SourceDocumentId { get; set; }
     public string? SourceDocumentTitle { get; set; }
-    public string? SourceDocumentContentField { get; set; }
     public string? SourceDocumentFilePath { get; set; }
 }