Don't turn off screen after wiping user profiles

The activity manager should know when to lock the screen. If an admin
does want this to happen then they should be able to run both commands
in succession.

Also rectifies some creative code styling in the same DPM method.

@bug 15558805

Change-Id: I8918184a4585aa8b061eb4a68edc2ec6805d8127
1 file changed