crypto: remove misleading comment

src/node_crypto.h

@@ -60,9 +60,8 @@ class SecureContext : ObjectWrap {
  public:
   static void Initialize(v8::Handle<v8::Object> target);
 
-  SSL_CTX *ctx_;
-  // TODO(indutny): ca_store_ should probably be removed, it's not used anywhere
-  X509_STORE *ca_store_;
+  SSL_CTX* ctx_;
+  X509_STORE* ca_store_;
 
   static const int kMaxSessionSize = 10 * 1024;