Revert "make sure we use the python from our env"

This reverts commit 839e536b5fec1ef5d10fc23508125d2ee8ed0890.

The reason for revert is that it fails ubuntu.

$ feat-service upgrade -i featcredex.local
bash: /home/projects/messy/bin/feat-service: env: zły interpreter: Nie ma takiego pliku ani katalogu