This combination of de- + skill conveys a pejorative connotation that "simplify" lacks.
deskill (third-person singular simple present deskills, present participle deskilling, simple past and past participle deskilled)
- To redesign (a job) so that less skill is required to carry it out, for example through the introduction of new technology.
- The impact on workers is fairly obvious but I believe that managerial jobs have also been deskilled by the adoption of controlling systems and procedures.
- To change the role of (workers) so that they are no longer required or able to use the skills that they have acquired.
- Tragic, too, is the gradual deskilling of teachers, loss of excitement about the profession, and loss of gifted teachers to other pursuits.