[turbofan] Remove --turbo-asm-deoptimization flag.

src/compiler/pipeline.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/pipeline.h"
 
 #include <fstream>  // NOLINT(readability/streams)
 #include <memory>
 #include <sstream>
 
@@ skipping 557 matching lines @@
     info()->MarkAsFunctionContextSpecializing();
   } else {
     if (!FLAG_always_opt) {
       info()->MarkAsBailoutOnUninitialized();
     }
     if (FLAG_turbo_loop_peeling) {
       info()->MarkAsLoopPeelingEnabled();
     }
   }
   if (info()->is_optimizing_from_bytecode() ||
-      !info()->shared_info()->asm_function() || FLAG_turbo_asm_deoptimization) {
+      !info()->shared_info()->asm_function()) {
     info()->MarkAsDeoptimizationEnabled();
     if (FLAG_inline_accessors) {
       info()->MarkAsAccessorInliningEnabled();
     }
   }
   if (!info()->is_optimizing_from_bytecode()) {
     if (!Compiler::EnsureDeoptimizationSupport(info())) return FAILED;
   } else if (FLAG_turbo_inlining) {
     info()->MarkAsInliningEnabled();
   }
@@ skipping 1385 matching lines @@
   data->DeleteRegisterAllocationZone();
 }
 
 CompilationInfo* PipelineImpl::info() const { return data_->info(); }
 
 Isolate* PipelineImpl::isolate() const { return info()->isolate(); }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8