Revert "worker: fixup after last commit"

This reverts commit d92991df6d645a26527d65d0b3451dcafbe8e3c9.
Revert "config: drop privileges in config_init"

This reverts commit bdc930830d4f954ad79e24e7d0469f1829b47ea8.
v0.14.3

Signed-off-by: Fedor Indutny <fedor@indutny.com>