Revert "Ensure dex file are extracted and verified at load time"

The art build bot fails for the oat location tests. I suspect that ScopedNonWritable is not working properly on the bot.

This reverts commit d2510c92e7c1f571ab012fcb82e77d7e1806ae3b.

Change-Id: Ica70862fd608ebdeb3c710f786ae21b99b69bc20
6 files changed