Revert "Record uptime info during logout"
Revert "Record uptime info during logout"

TBR for tree closing

This reverts commit cb938d50909dd60e15e1b78697113e4466e23ec4.

BUG=
TEST=

Review URL: http://codereview.chromium.org/5295001

Change-Id: Ia1538409fb58220eb82d4c90b759d0b2b889ccd9

joshfire/chromiumos-platform-init