Revert "Propagating values from if clauses to its successors"

This reverts commit c6b816ceb2b35300c937ef2e7d008598b6afba21.

Reason for revert: Broke libcore test https://ci.chromium.org/ui/p/art/builders/ci/angler-armv7-ndebug/3179/overview

Change-Id: I4f238bd20cc485e49078104e0225c373cac23415
19 files changed