Revert "Subdir fix."

This reverts commit dab2deff5a336fc9fe8b1d0a450b9a7ce3cb170e.
Revert "Nginx: Experimental site in a subdirectory support (2)."

This reverts commit fe7c82dbd671cadabf6f26ff9ed526c8087b9ecc.
Revert "Nginx: Experimental site in a subdirectory support (1)."

This reverts commit 429587f8018eb14b504768a3841f8cdf992710e3.