This reverts commit 53308bf7.

Reason for revert: Fails on multiple arm bots, e.g. https://ci.chromium.org/p/v8/builders/ci/V8%20Arm%20-%20debug/12441

Original change's description:
> [csa] use JSGraph to create constants in CodeAssembler
> 
> Now that CodeAssembler uses optimizing TurboFan passes, creating
> constants without using the caching implemented in JSGraph leads to
> problems, since value numbering only works properly if all constants
> in the graph were introduced through the cache.
> To mitigate this, this CL creates the JSGraph earlier so that
> CodeAssembler can already use the same JSGraph used by later TurboFan
> optimizations.
> For other uses of RawMachineAssembler, everything stays as before.
> 
> This issue is creating bot failures in
> https://chromium-review.googlesource.com/c/v8/v8/+/1958011
> 
> Change-Id: Ife017876b19cb2602694279ef1da75f23e18a031
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1967329
> Reviewed-by: Maya Lekova <mslekova@chromium.org>
> Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#65477}

TBR=tebbi@chromium.org,mslekova@chromium.org

Change-Id: I6df6782adfb40632f51681942efab9b591f72cab
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1969901Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65483}