[intrinsics] Nuke %HasCachedArrayIndex and %GetCachedArrayIndex.

src/crankshaft/s390/lithium-codegen-s390.cc

Index: src/crankshaft/s390/lithium-codegen-s390.cc
diff --git a/src/crankshaft/s390/lithium-codegen-s390.cc b/src/crankshaft/s390/lithium-codegen-s390.cc
index 3b4ed2a82c4f9120ed224619f627836d6945962e..3e34d82a252cdba85e0f94e782053b96011a9c2f 100644
--- a/src/crankshaft/s390/lithium-codegen-s390.cc
+++ b/src/crankshaft/s390/lithium-codegen-s390.cc
@@ -2441,27 +2441,6 @@ void LCodeGen::DoHasInstanceTypeAndBranch(LHasInstanceTypeAndBranch* instr) {
   EmitBranch(instr, BranchCondition(instr->hydrogen()));
 }
 
-void LCodeGen::DoGetCachedArrayIndex(LGetCachedArrayIndex* instr) {
-  Register input = ToRegister(instr->value());
-  Register result = ToRegister(instr->result());
-
-  __ AssertString(input);
-
-  __ LoadlW(result, FieldMemOperand(input, String::kHashFieldOffset));
-  __ IndexFromHash(result, result);
-}
-
-void LCodeGen::DoHasCachedArrayIndexAndBranch(
-    LHasCachedArrayIndexAndBranch* instr) {
-  Register input = ToRegister(instr->value());
-  Register scratch = scratch0();
-
-  __ LoadlW(scratch, FieldMemOperand(input, String::kHashFieldOffset));
-  __ mov(r0, Operand(String::kContainsCachedArrayIndexMask));
-  __ AndP(r0, scratch);
-  EmitBranch(instr, eq);
-}
-
 // Branches to a label or falls through with the answer in flags.  Trashes
 // the temp registers, but not the input.
 void LCodeGen::EmitClassOfTest(Label* is_true, Label* is_false,