This is subsumed by an optimization is JSCallReducer now.

Bug: v8:7340, v8:7250
Change-Id: I6c706177e410abd57ea24a7ffbbe2437733ed7c7
Reviewed-on: https://chromium-review.googlesource.com/946088Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51697}