I don't think so; the UK passed the Data Protection Act 2018 just 4 years ago, to bring GDPR into UK law. That is: the DPA is normal statute legislation, unlike the GDPR itself, which is a bureaucrat-made regulation. The DPA was passed by both houses of Parliament.
So what are these mysterious moves to ignore the law? The only such moves I'm aware of are some plans to remove the European Court of Human Rights from UK law (ain't gonna happen - the ECHR is written into the Good Friday Agreement), and the UK's decision to ignore the decision of the ICJ concerning the Chagos Islands.