function registerOp(name, opFunc) {
    const opMapper = {
        tfOpName: name,
        category: "custom",
        inputs: [],
        attrs: [],
        customExecutor: opFunc
    };
    CUSTOM_OPS[name] = opMapper;
}
Deregister the Op for graph model executor.

@param name The Tensorflow Op name.

@doc {heading: 'Models', subheading: 'Op Registry'}