DO NOT MERGE Revert "Erase PST partition if its marked to be erased."

This now gets done at the framework level. Doing it here breaks the signature on the partition.

This reverts commit ee19387905650cab5da7dd97ada5502cd17ac93d.

Bug: 19967123
Change-Id: I447b926b733ca145f11a916d9569ce39889db627
3 files changed