tylerferrara: Revert "Modified FakeTime to allow advances in time."

JobBuild
374
07-29 16:22
pull-cip-auditor-e2e 1420782374022549504 1420781864045514752
pull-cip-e2e 1420782373988995072 1420781863999377408
pull-cip-image-cip 1420782374060298240 1420781864083263488
pull-cip-unit-tests 1420782374093852672 1420781864121012224
pull-cip-verify 1420782374127407104 1420781864150372352
pull-cip-verify-archives 1420782374173544448 1420781864192315392