kdeFrameworks: remove redundant maintainer lists

I am automatically a maintainer of all packages in the set, so there is not
reason to mention me explicitly as the maintainer of every individual package.

pkgs/development/libraries/kde-frameworks/kwayland.nix

@@ -1,14 +1,11 @@
 {
-  mkDerivation, lib, propagateBin,
+  mkDerivation, propagateBin,
   extra-cmake-modules,
   plasma-wayland-protocols, qtbase, wayland, wayland-protocols
 }:
 
 mkDerivation {
   name = "kwayland";
-  meta = {
-    maintainers = [ lib.maintainers.ttuegel ];
-  };
   nativeBuildInputs = [ extra-cmake-modules ];
   buildInputs = [ plasma-wayland-protocols wayland wayland-protocols ];
   propagatedBuildInputs = [ qtbase ];