[builtins] Introduce DeleteProperty builtin

src/compiler/js-operator.cc

Index: src/compiler/js-operator.cc
diff --git a/src/compiler/js-operator.cc b/src/compiler/js-operator.cc
index 74156b086de41691e59521e4d1690036970f4340..9b53d4bb54bb92e48a82bbe467c3cf0cad940b63 100644
--- a/src/compiler/js-operator.cc
+++ b/src/compiler/js-operator.cc
@@ -891,12 +891,11 @@ const Operator* JSOperatorBuilder::StoreNamedOwn(
       parameters);                                          // parameter
 }
 
-const Operator* JSOperatorBuilder::DeleteProperty(LanguageMode language_mode) {
-  return new (zone()) Operator1<LanguageMode>(               // --
+const Operator* JSOperatorBuilder::DeleteProperty() {
+  return new (zone()) Operator(                              // --
       IrOpcode::kJSDeleteProperty, Operator::kNoProperties,  // opcode
       "JSDeleteProperty",                                    // name
-      2, 1, 1, 1, 1, 2,                                      // counts
-      language_mode);                                        // parameter
+      3, 1, 1, 1, 1, 2);                                     // counts
 }