Revert "Add vzw specific APN to d2vzw overlay."

This reverts commit df3db2b8de51a35de1ae87b67b55cafe10cab6d4

Change-Id: I54dba6f4abe843fe9dca12e1bf01384854d5cdfa
Merge "Revert "Add vzw specific APN to d2vzw overlay."" into cm-10.1