remove unused code

Author: roman-modelist-dev

include/keychain.hpp

@@ -14,7 +14,6 @@
 #include <fc/crypto/hex.hpp>
 #include <fc/variant.hpp>
 #include <graphene/utilities/key_conversion.hpp>
-#include <json/json.hpp>
 
 #include <boost/filesystem.hpp>
 #include <boost/signals2.hpp>

src/pipe_line_parser.cpp

@@ -12,7 +12,6 @@
 
 using keychain_t = keychain_app::keychain;
 
-using namespace nlohmann;
 using namespace keychain_app;
 
 pipeline_parser::pipeline_parser(keychain_invoke_f&& keychain_f)