Do not escape URI when extracting path
What does this MR do?
- remove escaping of URI parameters after they have already been unescaped in
ExtractsPath
- remove spec that is relying on that behavior
Why was this MR needed?
- spaces in directory names were escaped leading to 404 errors on repository files page
What are the relevant issue numbers?
fixes gitlab-com/support-forum#952 (closed), #21106 (closed)