Cleanup deoptimizer relocation slot preparation.

src/compiler/arm64/code-generator-arm64.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/code-generator.h"
 
 #include "src/arm64/macro-assembler-arm64.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
@@ skipping 1141 matching lines @@
 
       while (padding_size > 0) {
         __ nop();
         padding_size -= kInstructionSize;
       }
     }
   }
   MarkLazyDeoptSite();
 }
 
-
-void CodeGenerator::EnsureRelocSpaceForLazyDeopt(Handle<Code> code) {}
-
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8