Revert "Add note on running tests"

This reverts commit 735084fef85f9721849184958b64a50eed65cea0.

services/docstore/README.md

@@ -3,10 +3,7 @@ overleaf/docstore
 
 A CRUD API for storing and updating text documents in projects
 
-## Tests
-```
-AWS_BUCKET=**** AWS_ACCESS_KEY_ID=**** AWS_SECRET_ACCESS_KEY=**** make test
-```
+
 License
 -------