fixup! crypto: add raw key formats support to the KeyObject APIs

Author: panva

src/crypto/crypto_keys.cc

@@ -21,13 +21,11 @@ namespace node {
 
 using ncrypto::BignumPointer;
 using ncrypto::BIOPointer;
-using ncrypto::DataPointer;
 using ncrypto::ECKeyPointer;
 using ncrypto::ECPointPointer;
 using ncrypto::EVPKeyCtxPointer;
 using ncrypto::EVPKeyPointer;
 using ncrypto::MarkPopErrorOnReturn;
-using ncrypto::PKCS8Pointer;
 using v8::Array;
 using v8::Context;
 using v8::Function;