remove unused code block

Change-Id: I095f5c6a74fa35552e6ab9e51b6d31a0531074b8
diff --git a/src/ca-module.cpp b/src/ca-module.cpp
index c64cb96..a99bbd2 100644
--- a/src/ca-module.cpp
+++ b/src/ca-module.cpp
@@ -237,7 +237,7 @@
 
   // get server's ECDH pub key
   ECDHState ecdh;
-  auto myEcdhPubKeyBase64 = ecdh.getSelfPubKey();
+  auto myEcdhPubKey = ecdh.getSelfPubKey();
   std::vector<uint8_t> sharedSecret;
   try {
     sharedSecret = ecdh.deriveSecret(ecdhPub);
@@ -343,7 +343,7 @@
   Data result;
   result.setName(request.getName());
   result.setFreshnessPeriod(DEFAULT_DATA_FRESHNESS_PERIOD);
-  result.setContent(requesttlv::encodeDataContent(myEcdhPubKeyBase64,
+  result.setContent(requesttlv::encodeDataContent(myEcdhPubKey,
                                                   salt,
                                                   requestState.requestId, requestState.status,
                                                   m_config.caProfile.supportedChallenges));