Revert of [turbofan] Add language mode to JSCallFunction operator.

src/compiler/ast-graph-builder.cc

Index: src/compiler/ast-graph-builder.cc
diff --git a/src/compiler/ast-graph-builder.cc b/src/compiler/ast-graph-builder.cc
index 4b204c460dcaa559953decdb8e5b0559c5a1aed2..03fee5847d11a9ba0326e74cc45abe865077803e 100644
--- a/src/compiler/ast-graph-builder.cc
+++ b/src/compiler/ast-graph-builder.cc
@@ -1293,9 +1293,8 @@
         JSBuiltinsObject::OffsetOfFunctionWithId(Builtins::FILTER_KEY));
     // result is either the string key or Smi(0) indicating the property
     // is gone.
-    Node* res = NewNode(
-        javascript()->CallFunction(3, NO_CALL_FUNCTION_FLAGS, language_mode()),
-        function, obj, value);
+    Node* res = NewNode(javascript()->CallFunction(3, NO_CALL_FUNCTION_FLAGS),
+                        function, obj, value);
     PrepareFrameState(res, stmt->FilterId(), OutputFrameStateCombine::Push());
     Node* property_missing =
         NewNode(javascript()->StrictEqual(), res, jsgraph()->ZeroConstant());
@@ -2199,8 +2198,7 @@
   }
 
   // Create node to perform the function call.
-  const Operator* call =
-      javascript()->CallFunction(args->length() + 2, flags, language_mode());
+  const Operator* call = javascript()->CallFunction(args->length() + 2, flags);
   Node* value = ProcessArguments(call, args->length() + 2);
   PrepareFrameState(value, expr->id(), ast_context()->GetStateCombine());
   ast_context()->ProduceValue(value);
@@ -2244,8 +2242,7 @@
   VisitForValues(args);
 
   // Create node to perform the JS runtime call.
-  const Operator* call =
-      javascript()->CallFunction(args->length() + 2, flags, language_mode());
+  const Operator* call = javascript()->CallFunction(args->length() + 2, flags);
   Node* value = ProcessArguments(call, args->length() + 2);
   PrepareFrameState(value, expr->id(), ast_context()->GetStateCombine());
   ast_context()->ProduceValue(value);