[intrinsics] Nuke %HasCachedArrayIndex and %GetCachedArrayIndex.

src/ppc/macro-assembler-ppc.cc

Index: src/ppc/macro-assembler-ppc.cc
diff --git a/src/ppc/macro-assembler-ppc.cc b/src/ppc/macro-assembler-ppc.cc
index 1979500266af86ff22cdc6d6898b9a84c3452ee6..3bfe0ee078399f7e068eb7f509350b37bff25716 100644
--- a/src/ppc/macro-assembler-ppc.cc
+++ b/src/ppc/macro-assembler-ppc.cc
@@ -2431,18 +2431,6 @@ bool MacroAssembler::AllowThisStubCall(CodeStub* stub) {
   return has_frame_ || !stub->SometimesSetsUpAFrame();
 }
 
-
-void MacroAssembler::IndexFromHash(Register hash, Register index) {
-  // If the hash field contains an array index pick it out. The assert checks
-  // that the constants for the maximum number of digits for an array index
-  // cached in the hash field and the number of bits reserved for it does not
-  // conflict.
-  DCHECK(TenToThe(String::kMaxCachedArrayIndexLength) <
-         (1 << String::kArrayIndexValueBits));
-  DecodeFieldToSmi<String::ArrayIndexValueBits>(index, hash);
-}
-
-
 void MacroAssembler::SmiToDouble(DoubleRegister value, Register smi) {
   SmiUntag(ip, smi);
   ConvertIntToDouble(ip, value);