No, deploying the Xtz code should not be done if Xtz is pulled out of exchanges. This is because the Xtz code is not designed to be used outside of an exchange and therefore would not be supported if it is pulled out of exchanges. Additionally, deploying the Xtz code could lead to a number of potential problems, such as security vulnerabilities, incompatibilities, and other issues that could arise from running the code outside of an exchange. Therefore, it is best to avoid deploying the Xtz code if Xtz is pulled out of exchanges.