am a4d7bac2: Remove the eng tag, the VPN will need pppd in user build.

Merge commit 'a4d7bac2a1623e7dc7603f5da9d5ff731dea6eac'

* commit 'a4d7bac2a1623e7dc7603f5da9d5ff731dea6eac':
  Remove the eng tag, the VPN will need pppd in user build.