Revert "Run confd in the background, tail haproxy logs in foreground"

This reverts commit 9fedc588bc4a14b5450b4c258ce1a7419c4bf4ab.
Revert "Bump confd to 0.7.1"

This reverts commit 3e071141a00b00b9988b5d51ed7223bad4a1e0da.