Yes, I know that @Puzzledandpissedoff (re the difference between patron and trustee), I was just remembering the Sentebale fiasco, which also had Harry as patron and now has a legal case against him.
I hope, like you, that they are taking measures to remove him. What I meant was that they may be attempting to do so but that he may well be objecting. If so, we are likely to hear about it and it may not be pleasant.
As far as I know, the only charity that Harry is director of rather than patron is African Parks. Very different legally, and we haven't heard much from him about the atrocities committed on his watch.
ETA Sorry - I've now read your second paragraph properly. I didn't know that was all it took - as I said, I don't know the legal requirements in that area.