Joined Cases T-748/17 and T-770/17: Order of the General Court of 24 September 2019 — TrekStor and Beats Electronics v EUIPO — Beats Electronics and TrekStor (iBeat) (EU trade mark — Revocation proceedings — Withdrawal of the application for revocation — No need to adjudicate — Article 137 of the Rules of Procedure of the General Court — Avoidable costs — Article 139(a) of the Rules of Procedure of the General Court)