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

src/compiler/graph.h

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_GRAPH_H_
 #define V8_COMPILER_GRAPH_H_
 
 #include "src/zone.h"
 #include "src/zone-containers.h"
 
@@ skipping 16 matching lines @@
 // NodeIds are identifying numbers for nodes that can be used to index auxiliary
 // out-of-line data associated with each node.
 typedef uint32_t NodeId;
 
 
 class Graph : public ZoneObject {
  public:
   explicit Graph(Zone* zone);
 
   // Base implementation used by all factory methods.
-  Node* NewNodeUnchecked(const Operator* op, int input_count, Node** inputs,
-                         bool incomplete = false);
-
-  // Factory that checks the input count.
   Node* NewNode(const Operator* op, int input_count, Node** inputs,
                 bool incomplete = false);
 
   // Factories for nodes with static input counts.
   Node* NewNode(const Operator* op) {
     return NewNode(op, 0, static_cast<Node**>(nullptr));
   }
   Node* NewNode(const Operator* op, Node* n1) { return NewNode(op, 1, &n1); }
   Node* NewNode(const Operator* op, Node* n1, Node* n2) {
     Node* nodes[] = {n1, n2};
@@ skipping 74 matching lines @@
  public:
   virtual ~GraphDecorator() {}
   virtual void Decorate(Node* node) = 0;
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_GRAPH_H_