Revert of Replace all remaining Oddball checks with new function

test/unittests/compiler/instruction-selector-unittest.cc

Index: test/unittests/compiler/instruction-selector-unittest.cc
diff --git a/test/unittests/compiler/instruction-selector-unittest.cc b/test/unittests/compiler/instruction-selector-unittest.cc
index 9b1b40e51b51ea0c6118fc1ee9dfa2ef2d66dc7a..7edbf4261678595c0f1da7ab0bbeec47e81902b8 100644
--- a/test/unittests/compiler/instruction-selector-unittest.cc
+++ b/test/unittests/compiler/instruction-selector-unittest.cc
@@ -480,7 +480,7 @@
   EXPECT_EQ(0, s.ToInt32(call_instr->InputAt(4)));  // This should be a context.
                                                     // We inserted 0 here.
   EXPECT_EQ(0.5, s.ToFloat64(call_instr->InputAt(5)));
-  EXPECT_TRUE(s.ToHeapObject(call_instr->InputAt(6))->IsUndefined(isolate()));
+  EXPECT_TRUE(s.ToHeapObject(call_instr->InputAt(6))->IsUndefined());
   EXPECT_EQ(MachineType::AnyTagged(),
             desc_before->GetType(0));  // function is always
                                        // tagged/any.