Do not resolve JsonSchema refs when parsing a doc

Author: irvinesunday

src/Microsoft.OpenApi/Reader/OpenApiJsonReader.cs

@@ -95,7 +95,7 @@ public async Task<ReadResult> ReadAsync(JsonNode jsonNode,
                     }
                 }
 
-                ResolveReferences(diagnostic, document);
+                document.ResolveHostDocument();
             }
             catch (OpenApiException ex)
             {
@@ -199,16 +199,5 @@ private async Task<OpenApiDiagnostic> LoadExternalRefs(OpenApiDocument document,
             var workspaceLoader = new OpenApiWorkspaceLoader(openApiWorkSpace, settings.CustomExternalLoader ?? streamLoader, settings);
             return await workspaceLoader.LoadAsync(new OpenApiReference() { ExternalResource = "/" }, document, format ?? OpenApiConstants.Json, null, cancellationToken);
         }
-
-        private void ResolveReferences(OpenApiDiagnostic diagnostic, OpenApiDocument document)
-        {
-            List<OpenApiError> errors = new();
-            errors.AddRange(document.ResolveReferences());
-
-            foreach (var item in errors)
-            {
-                diagnostic.Errors.Add(item);
-            }
-        }
     }
 }