[intrinsics] Nuke %HasCachedArrayIndex and %GetCachedArrayIndex.

src/ia32/macro-assembler-ia32.h

Index: src/ia32/macro-assembler-ia32.h
diff --git a/src/ia32/macro-assembler-ia32.h b/src/ia32/macro-assembler-ia32.h
index 00e18284c03f44b2962818725e84f279b5dcf079..192d5684202de64ecdc856a7f06c13701debe605 100644
--- a/src/ia32/macro-assembler-ia32.h
+++ b/src/ia32/macro-assembler-ia32.h
@@ -714,12 +714,6 @@ class MacroAssembler: public Assembler {
   void TryGetFunctionPrototype(Register function, Register result,
                                Register scratch, Label* miss);
 
-  // Picks out an array index from the hash field.
-  // Register use:
-  //   hash - holds the index's hash. Clobbered.
-  //   index - holds the overwritten index on exit.
-  void IndexFromHash(Register hash, Register index);
-
   // ---------------------------------------------------------------------------
   // Runtime calls