remove sysx specific field for all other assets than sysx
remove sysx specific field for all other assets than sysx


Former-commit-id: 2eaa5bf9b673aa3fe0278be75d6a2a5b4fea6e84
syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin