This reverts commit 8d9de7ff.

Reason for revert: Breaks roll:
https://chromium-review.googlesource.com/c/chromium/src/+/806714

  # Fatal error in ../../v8/src/compiler/code-generator.cc, line 1032
  # unreachable code

  #3 v8::internal::compiler::CodeGenerator::AddTranslationForOperand()
  #4 v8::internal::compiler::CodeGenerator::TranslateFrameStateDescriptorOperands()
  #5 v8::internal::compiler::CodeGenerator::BuildTranslation()
  #6 v8::internal::compiler::CodeGenerator::AssembleInstruction()
  #7 v8::internal::compiler::CodeGenerator::AssembleCode()
  #8 v8::internal::compiler::PipelineImpl::AssembleCode()

Original change's description:
> [compiler] Remove dead code in CodeGenerator::BuildTranslation.
> 
> R=​jarin@chromium.org
> 
> Bug: 
> Change-Id: Id219fb91c4c4f40677edea6f9c04763284e14373
> Reviewed-on: https://chromium-review.googlesource.com/800934
> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> Commit-Queue: Georg Neis <neis@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#49831}

TBR=jarin@chromium.org,neis@chromium.org

Change-Id: I6f5e13e70dc816a4e0c4a362bd3a30091c14c637
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/807944Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49852}