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/kconfigwidgets/default.nix

@@ -1,11 +1,10 @@
 {
-  mkDerivation, lib, extra-cmake-modules,
+  mkDerivation, extra-cmake-modules,
   kauth, kcodecs, kconfig, kdoctools, kguiaddons, ki18n, kwidgetsaddons, qttools, qtbase,
 }:
 
 mkDerivation {
   name = "kconfigwidgets";
-  meta = { maintainers = [ lib.maintainers.ttuegel ]; };
   nativeBuildInputs = [ extra-cmake-modules kdoctools ];
   buildInputs = [ kguiaddons ki18n qtbase qttools ];
   propagatedBuildInputs = [ kauth kcodecs kconfig kwidgetsaddons ];