Link to the folder with data removed

docs/user-guide/quick-start/contributor-api.md

@@ -104,10 +104,7 @@ Currently all mapping file operations are carried out via API. For more informat
 
 Let's reproduce the most frequent use case by creating an entire study using the Swagger interface. 
 Swagger provides a user-friendly interface for interacting with APIs. For this example, 
-we will use the file [GSE60871](https://bio-test-data.s3.us-west-2.amazonaws.com/GSE60871/), which contains the main entities: study, samples, and experimental 
-data (in this case gene expression):
-
-Data files for this use case:
+we will use the following files:
 
 * [GSE60871_Study metadata](https://bio-test-data.s3.amazonaws.com/GSE60871/GSE60871_study.tsv) (TSV file)
 * [GSE60871_Sample metadata](https://bio-test-data.s3.amazonaws.com/GSE60871/GSE60871_samples.tsv) (TSV file)