testing/ytop: remove
no longer maintained by upstream: https://github.com/cjbassi/ytop/commit/5d1e2fd1dc3edff9ea1025c93fcce8adc1f64ecc
Edited by Michał Polański
no longer maintained by upstream: https://github.com/cjbassi/ytop/commit/5d1e2fd1dc3edff9ea1025c93fcce8adc1f64ecc