This removes special support in the compilation pipeline to keep alive
unoptimized code for inlined functions (i.e. preventing the code flusher
from clearing it). Now that the code flusher is gone, this is obsolete.

R=jarin@chromium.org

Change-Id: I00361d12f2d17556056d06c10ad19f09a4772cd8
Reviewed-on: https://chromium-review.googlesource.com/517948Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45568}