[stubs] Remove the is_jsarray bit from the TransitionElementsKindStub.

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 3995dfdfc448ec73e63751709d7b29b4f12e0fe8..fb7f6b3c9a87dec1eaafb03675e9a67696570061 100644
--- a/src/crankshaft/s390/lithium-codegen-s390.cc
+++ b/src/crankshaft/s390/lithium-codegen-s390.cc
@@ -4418,8 +4418,7 @@ void LCodeGen::DoTransitionElementsKind(LTransitionElementsKind* instr) {
     DCHECK(object_reg.is(r2));
     PushSafepointRegistersScope scope(this);
     __ Move(r3, to_map);
-    bool is_js_array = from_map->instance_type() == JS_ARRAY_TYPE;
-    TransitionElementsKindStub stub(isolate(), from_kind, to_kind, is_js_array);
+    TransitionElementsKindStub stub(isolate(), from_kind, to_kind);
     __ CallStub(&stub);
     RecordSafepointWithRegisters(instr->pointer_map(), 0,
                                  Safepoint::kLazyDeopt);