It introduced a security issue since these env vars are not filtered by
either sudo or rootwrap. This change reverts changes in common code from
Iace26738f910a18a5d1d3479fad949027e5a3816 (most of them)
and purges ability to specify env in arguments for daemon.
Environment should be provided to callee process using EnvFilter and
/usr/bin/env.
Change-Id: Iafbc493d6158f3ea85b3d74cb37c29e161a1099f
f485b93f47