[turbofan] Remove unused constructor function matching from typer.

test/cctest/compiler/test-machine-operator-reducer.cc

Index: test/cctest/compiler/test-machine-operator-reducer.cc
diff --git a/test/cctest/compiler/test-machine-operator-reducer.cc b/test/cctest/compiler/test-machine-operator-reducer.cc
index d3ab454d6f6d3117c20a9e46b7fbc16751d0b440..299f0c02abf52d421d09f5c1701d3a473ffa2652 100644
--- a/test/cctest/compiler/test-machine-operator-reducer.cc
+++ b/test/cctest/compiler/test-machine-operator-reducer.cc
@@ -60,7 +60,7 @@ class ReducerTester : public HandleAndZoneScope {
         common(main_zone()),
         graph(main_zone()),
         javascript(main_zone()),
-        typer(isolate, &graph, nullptr, MaybeHandle<Context>()),
+        typer(isolate, &graph),
         jsgraph(isolate, &graph, &common, &javascript, &machine),
         maxuint32(Constant<int32_t>(kMaxUInt32)) {
     Node* s = graph.NewNode(common.Start(num_parameters));