Remove hardcoded TARGET_PREFER_32_BIT_APPS.

This isn't required any longer, besides individual products
should be allowed to set this value themselves.

(cherry picked from commit 7b9347a7f9d870e149ef38438ad547abe2709ee2)

Change-Id: If459eab32c6e7831596224ad3503baefbf028133
2 files changed