Revert "Support code between def and use in IfWithConstantSimplifier"

This reverts commit 9b13196a8129aed9afcbaa17dd0e0388e199b75e.

This seems to be causing ART compilation issues for the boot image.

Bug: 31759708
Change-Id: Ia130175110578078d31108b7928fd8c0cc61e3ac
1 file changed