[intrinsics] Nuke %HasCachedArrayIndex and %GetCachedArrayIndex.

src/s390/macro-assembler-s390.h

Index: src/s390/macro-assembler-s390.h
diff --git a/src/s390/macro-assembler-s390.h b/src/s390/macro-assembler-s390.h
index 3841f8eac0d0a4d00ed220c680184ddc89371070..a87bc92f1dc5a72b0b0d3342d8ac7ce2a09ae286 100644
--- a/src/s390/macro-assembler-s390.h
+++ b/src/s390/macro-assembler-s390.h
@@ -1169,12 +1169,6 @@ class MacroAssembler : public Assembler {
     return eq;
   }
 
-  // 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);
-
   // Get the number of least significant bits from a register
   void GetLeastBitsFromSmi(Register dst, Register src, int num_least_bits);
   void GetLeastBitsFromInt32(Register dst, Register src, int mun_least_bits);