Revert "data usage cycle length"

This reverts commit 5c39fa180931c1f179711754fc80353982c08912.
Settings: Day and week on data usage cycle (2/2)

Adds the ability to set day and week on when the data usage graph resets, instead of just month.

Change-Id: I5974e1b7143d09ffd6fcd6db113c3f7511346bfa

Patchset: 5
http://review.cyanogenmod.org/#/c/55595/