Removing NSS files and USE_OPENSSL flag

crypto/aead_openssl_unittest.cc

 // Copyright 2015 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 "crypto/aead_openssl.h"
 
 #include <string>
 
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
 
-#if defined(USE_OPENSSL)
-
 TEST(AeadTest, SealOpen) {
   crypto::Aead aead(crypto::Aead::AES_128_CTR_HMAC_SHA256);
   std::string key(aead.KeyLength(), 0);
   aead.Init(&key);
   std::string nonce(aead.NonceLength(), 0);
   std::string plaintext("this is the plaintext");
   std::string ad("this is the additional data");
   std::string ciphertext;
   EXPECT_TRUE(aead.Seal(plaintext, nonce, ad, &ciphertext));
   EXPECT_LT(0U, ciphertext.size());
@@ skipping 17 matching lines @@
   std::string ad("this is the additional data");
   std::string ciphertext;
   EXPECT_TRUE(aead.Seal(plaintext, nonce, ad, &ciphertext));
   EXPECT_LT(0U, ciphertext.size());
 
   std::string decrypted;
   EXPECT_FALSE(aead_wrong_key.Open(ciphertext, nonce, ad, &decrypted));
   EXPECT_EQ(0U, decrypted.size());
 }
 
-#endif
-
 }  // namespace