Use ic_person_white_64dp with correct padding

UX gave me updated ic_person_white_64dp icons with the correct
amount of padding built inside them.

ag/505983 contained a work around for having ic_person_white_64dp
resources with the wrong amount of padding. This CL reverts this
work around since it is no longer needed.

Bug: 16683381
Change-Id: If0fc283f5e1cfc4e4ac3f20896652da8cd14473b
7 files changed