Revert of [turbofan] Checking of input counts on node creation

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

Index: test/cctest/compiler/test-simplified-lowering.cc
diff --git a/test/cctest/compiler/test-simplified-lowering.cc b/test/cctest/compiler/test-simplified-lowering.cc
index 934f958f00598242965f2a5a5eedc450e92b8f3f..07f51533f1da31b6248a5d93e252b5481105129b 100644
--- a/test/cctest/compiler/test-simplified-lowering.cc
+++ b/test/cctest/compiler/test-simplified-lowering.cc
@@ -1219,10 +1219,7 @@
 static void CheckChangesAroundBinop(TestingGraph* t, const Operator* op,
                                     IrOpcode::Value input_change,
                                     IrOpcode::Value output_change) {
-  Node* binop =
-      op->ControlInputCount() == 0
-          ? t->graph()->NewNode(op, t->p0, t->p1)
-          : t->graph()->NewNode(op, t->p0, t->p1, t->graph()->start());
+  Node* binop = t->graph()->NewNode(op, t->p0, t->p1);
   t->Return(binop);
   t->Lower();
   CHECK_EQ(input_change, binop->InputAt(0)->opcode());