[turbofan] Remove obsolete --turbo-shipping flag.

src/ast/ast-numbering.cc

 // Copyright 2012 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/ast/ast-numbering.h"
 
 #include "src/ast/ast.h"
 #include "src/ast/scopes.h"
 
 namespace v8 {
@@ skipping 38 matching lines @@
 
   void IncrementNodeCount() { properties_.add_node_count(1); }
   void DisableSelfOptimization() {
     properties_.flags() |= AstProperties::kDontSelfOptimize;
   }
   void DisableOptimization(BailoutReason reason) {
     dont_optimize_reason_ = reason;
     DisableSelfOptimization();
   }
   void DisableCrankshaft(BailoutReason reason) {
-    if (FLAG_turbo_shipping) {
-      properties_.flags() |= AstProperties::kDontCrankshaft;
-    } else {
-      dont_optimize_reason_ = reason;
-      DisableSelfOptimization();
-    }
+    properties_.flags() |= AstProperties::kDontCrankshaft;
   }
 
   template <typename Node>
   void ReserveFeedbackSlots(Node* node) {
     node->AssignFeedbackVectorSlots(isolate_, properties_.get_spec(),
                                     &slot_cache_);
   }
 
   BailoutReason dont_optimize_reason() const { return dont_optimize_reason_; }
 
@@ skipping 517 matching lines @@
 }
 
 
 bool AstNumbering::Renumber(Isolate* isolate, Zone* zone,
                             FunctionLiteral* function) {
   AstNumberingVisitor visitor(isolate, zone);
   return visitor.Renumber(function);
 }
 }  // namespace internal
 }  // namespace v8