Not sure how you can avoid a HIRTA if your flying into or from Croft Farm Airstrip, which is situated within the HIRTA near Malvern.
The transmitting equipment at Defford was removed years ago. It appears there is a requirement to notify those it might affect when the equipment is installed however; no requirement to tell anyone when its removed. When asked for confirmation by the CAA, the new site owner had no knowledge of any such equipment and after 3 years they finally removed the Defford HIRTA from the chart.