Revert "ART: Better SSA Allocation when recreating SSA"

Temporarily reverting until memory footprint cost of adding a vreg to ssa entrance map on every applicable MIR node can be assessed..

This reverts commit cb73fb35e5f7c575ed491c0c8e2d2b1a0a22ea2e.

Change-Id: Ia9c03bfc5d365ad8d8b949e870f1e3bcda7f9a54
4 files changed