[turbofan] Remove unused constructor function matching from typer.

test/cctest/compiler/test-changes-lowering.cc

Index: test/cctest/compiler/test-changes-lowering.cc
diff --git a/test/cctest/compiler/test-changes-lowering.cc b/test/cctest/compiler/test-changes-lowering.cc
index 1483f86f9574ec580f98dc131b8ea0fc500830b3..04b5b9176b6c4e9677ec6822edc34f2ee2b7e2b0 100644
--- a/test/cctest/compiler/test-changes-lowering.cc
+++ b/test/cctest/compiler/test-changes-lowering.cc
@@ -126,7 +126,7 @@ class ChangesLoweringTester : public GraphBuilderTester<ReturnType> {
 
   void LowerChange(Node* change) {
     // Run the graph reducer with changes lowering on a single node.
-    Typer typer(this->isolate(), this->graph(), nullptr, Handle<Context>());
+    Typer typer(this->isolate(), this->graph());
     typer.Run();
     ChangeLowering change_lowering(&jsgraph);
     SelectLowering select_lowering(this->graph(), this->common());