This reverts commit 47a97aa5.

Reason for revert:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosnap%20-%20debug

Original change's description:
> [builtins] Port getting property from Proxy to CSA
> 
> Bug: v8:6559, v8:6557
> Change-Id: If6c51f5483adb73ddd2495cede5d85e887a3c298
> Reviewed-on: https://chromium-review.googlesource.com/589212
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Commit-Queue: Maya Lekova <mslekova@google.com>
> Cr-Commit-Position: refs/heads/master@{#47113}

TBR=jkummerow@chromium.org,mstarzinger@chromium.org,franzih@chromium.org,ishell@chromium.org,bmeurer@chromium.org,mslekova@google.com

Change-Id: Id28e529d1d88f7589d4d66ef23b8b510a33a817b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6559, v8:6557
Reviewed-on: https://chromium-review.googlesource.com/600049Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47117}