Revert^3 "ART: Dual mapping of JIT code pages"

This reverts commit 0e904ffc3376fe6fd272fee809752463f10e27f5.

Reason for revert: Seems to break for 32-bit arm

Bug: 66095511
Bug: 111199492
Bug: 116761923
Change-Id: I7d4bc78a1d5748a85ce63e2c57f32a8bdb768354
5 files changed