Removing NSS files and USE_OPENSSL flag

crypto/symmetric_key.h

Index: crypto/symmetric_key.h
diff --git a/crypto/symmetric_key.h b/crypto/symmetric_key.h
index 14f74aeb7473767e4f354ce652239423201d4498..b24e2dfe83dd8b9b0861c2bc9c6a1ece8618680e 100644
--- a/crypto/symmetric_key.h
+++ b/crypto/symmetric_key.h
@@ -17,9 +17,6 @@
 // See comments for crypto_nacl_win64 in crypto.gyp.
 // Must test for NACL_WIN64 before OS_WIN since former is a subset of latter.
 #include "crypto/scoped_capi_types.h"
-#elif defined(USE_NSS_CERTS) || \
-    (!defined(USE_OPENSSL) && (defined(OS_WIN) || defined(OS_MACOSX)))
-#include "crypto/scoped_nss_types.h"
 #endif
 
 namespace crypto {
@@ -62,10 +59,8 @@ class CRYPTO_EXPORT SymmetricKey {
 
 #if defined(NACL_WIN64)
   HCRYPTKEY key() const { return key_.get(); }
-#elif defined(USE_OPENSSL)
+#else
   const std::string& key() { return key_; }
-#elif defined(USE_NSS_CERTS) || defined(OS_WIN) || defined(OS_MACOSX)
-  PK11SymKey* key() const { return key_.get(); }
 #endif
 
   // Extracts the raw key from the platform specific data.
@@ -88,12 +83,9 @@ class CRYPTO_EXPORT SymmetricKey {
   // TODO(rsleevi): See if KP_EFFECTIVE_KEYLEN is the reason why CryptExportKey
   // fails with NTE_BAD_KEY/NTE_BAD_LEN
   std::string raw_key_;
-#elif defined(USE_OPENSSL)
+#else
   SymmetricKey() {}
   std::string key_;
-#elif defined(USE_NSS_CERTS) || defined(OS_WIN) || defined(OS_MACOSX)
-  explicit SymmetricKey(PK11SymKey* key);
-  ScopedPK11SymKey key_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(SymmetricKey);