[turbofan] Remove deprecated code from RawMachineAssembler.

src/compiler/raw-machine-assembler.h

 // 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.
 
 #ifndef V8_COMPILER_RAW_MACHINE_ASSEMBLER_H_
 #define V8_COMPILER_RAW_MACHINE_ASSEMBLER_H_
 
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/linkage.h"
@@ skipping 16 matching lines @@
 // In order to create a schedule on-the-fly, the assembler keeps track of basic
 // blocks by having one current basic block being populated and by referencing
 // other basic blocks through the use of labels.
 class RawMachineAssembler {
  public:
   class Label {
    public:
     Label() : block_(NULL), used_(false), bound_(false) {}
     ~Label() { DCHECK(bound_ || !used_); }
 
-    BasicBlock* block() { return block_; }
-
    private:
-    // Private constructor for exit label.
-    explicit Label(BasicBlock* block)
-        : block_(block), used_(false), bound_(false) {}
-
     BasicBlock* block_;
     bool used_;
     bool bound_;
     friend class RawMachineAssembler;
     DISALLOW_COPY_AND_ASSIGN(Label);
   };
 
   RawMachineAssembler(Isolate* isolate, Graph* graph,
                       CallDescriptor* call_descriptor,
                       MachineType word = kMachPtr,
@@ skipping 537 matching lines @@
   BasicBlock* current_block_;
 
   DISALLOW_COPY_AND_ASSIGN(RawMachineAssembler);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_RAW_MACHINE_ASSEMBLER_H_