Revert "Add a dependency on the AOT shi..." and remove adhoc pexe->nexe disables.
This reverts commit r284737.
It's no longer needed since build_pnacl_newlib plus
enable_${arch} no longer imply that the pexe should be
translated. That's controlled by the
translate_pexe_with_build flag instead.
Also remove the adhoc uses of enable_x86_32: 0, etc.
now that pexe -> nexe is off by default.
BUG=none
Review URL: https://codereview.chromium.org/
433943004
Cr-Commit-Position: refs/heads/master@{#289144}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@289144 0039d316-1c4b-4281-b951-d872f2087c98