Remove code interfacing legacy openssl.

webrtc/base/opensslidentity.cc

Index: webrtc/base/opensslidentity.cc
diff --git a/webrtc/base/opensslidentity.cc b/webrtc/base/opensslidentity.cc
index 3c421db07ce44cbcef69adf279a4fb460bd36f83..269bfced1706f612a8f82ab566eea28ce4b4bb53 100644
--- a/webrtc/base/opensslidentity.cc
+++ b/webrtc/base/opensslidentity.cc
@@ -174,11 +174,7 @@ OpenSSLKeyPair* OpenSSLKeyPair::GetReference() {
 }
 
 void OpenSSLKeyPair::AddReference() {
-#if defined(OPENSSL_IS_BORINGSSL)
   EVP_PKEY_up_ref(pkey_);
-#else
-  CRYPTO_add(&pkey_->references, 1, CRYPTO_LOCK_EVP_PKEY);
-#endif
 }
 
 #if !defined(NDEBUG)
@@ -361,11 +357,7 @@ void OpenSSLCertificate::ToDER(Buffer* der_buffer) const {
 
 void OpenSSLCertificate::AddReference() const {
   ASSERT(x509_ != NULL);
-#if defined(OPENSSL_IS_BORINGSSL)
   X509_up_ref(x509_);
-#else
-  CRYPTO_add(&x509_->references, 1, CRYPTO_LOCK_X509);
-#endif
 }
 
 // Documented in sslidentity.h.