Stepping down as KGlobalAccel and KWindowSystem maintainer after 5.42

[Martin Flöser]

Hi all,

I had sent a mail some time ago asking for someone to step up as 
KGlobalAccel maintainer. I kept maintaining it as I didn't want to leave 
it in empty hands.

But I feel the time is come for me that I am no longer able to maintain 
KGlobalAccel and as well KWindowSystem. Both are too X11 specific and 
too much about window systems I don't care about. Sometimes I feel like 
standing in the way of evolving the frameworks as I am too conservative 
due to the fact that I don't use X11 any more.

I hope we find someone to step up. After 5.42 is released I'll push 
commits to those repositories removing me as maintainer.

Thank you
Martin