Revert^2 "Enable JIT dual data mapping."

We use it for zygote.  Enable it for other cases
as well for consistency, security and testing.

This reverts commit 014c16c3e1ccedbea025111bc79f0a0351ba52d0.

Reason for revert: Reland https://r.android.com/1105362

Test: testrunner.py --host
Change-Id: I147365634ce196c4acc298e36966936f54e181aa
1 file changed