Delete some dead code.

tools/gn/builder_unittest.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "tools/gn/builder.h"
 #include "tools/gn/loader.h"
 #include "tools/gn/target.h"
 #include "tools/gn/test_with_scope.h"
 #include "tools/gn/toolchain.h"
@@ skipping 17 matching lines @@
   }
   virtual const Settings* GetToolchainSettings(
       const Label& label) const OVERRIDE {
     return NULL;
   }
 
   bool HasLoadedNone() const {
     return files_.empty();
   }
 
-  // Returns true if one load has been requested and it matches the given
+  // Returns true if two loads have been requested and they match the given
   // file. This will clear the records so it will be empty for the next call.
-  bool HasLoadedOne(const SourceFile& f) {
-    if (files_.size() != 1u) {
-      files_.clear();
-      return false;
-    }
-
-    bool match = (files_[0] == f);
-    files_.clear();
-    return match;
-  }
-
-  // Like HasLoadedOne above. Accepts any ordering.
   bool HasLoadedTwo(const SourceFile& a, const SourceFile& b) {
     if (files_.size() != 2u) {
       files_.clear();
       return false;
     }
 
     bool match = (
         (files_[0] == a && files_[1] == b) ||
         (files_[0] == b && files_[0] == a));
     files_.clear();
@@ skipping 156 matching lines @@
   a->set_output_type(Target::EXECUTABLE);
   builder_->ItemDefined(scoped_ptr<Item>(a));
 
   // A should have the generate bit set since it's in the default toolchain.
   BuilderRecord* a_record = builder_->GetRecord(a_label);
   EXPECT_TRUE(a_record->should_generate());
 
   // It should have gotten pushed to B.
   EXPECT_TRUE(b_record->should_generate());
 }