A64: Synchronize with r16849.

src/a64/code-stubs-a64.h

Index: src/a64/code-stubs-a64.h
diff --git a/src/a64/code-stubs-a64.h b/src/a64/code-stubs-a64.h
index 065c547134ac00b3d272e78408ca767333bca345..1f911ccf2cc8750be3b7b3eeb3fd777e4c1aba86 100644
--- a/src/a64/code-stubs-a64.h
+++ b/src/a64/code-stubs-a64.h
@@ -158,19 +158,6 @@ class NumberToStringStub: public PlatformCodeStub {
  public:
   NumberToStringStub() { }
 
-  // Generate code to do a lookup in the number string cache. If the number in
-  // the register object is found in the cache the generated code falls through
-  // with the result in the result register. The object and the result register
-  // can be the same. If the number is not found in the cache the code jumps to
-  // the label not_found with only the content of register object unchanged.
-  static void GenerateLookupNumberStringCache(MacroAssembler* masm,
-                                              Register object,
-                                              Register result,
-                                              Register scratch1,
-                                              Register scratch2,
-                                              Register scratch3,
-                                              Label* not_found);
-
  private:
   Major MajorKey() { return NumberToString; }
   int MinorKey() { return 0; }