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/plasma-framework.nix

@@ -1,5 +1,5 @@
 {
-  mkDerivation, lib,
+  mkDerivation,
   extra-cmake-modules, kdoctools,
   kactivities, karchive, kconfig, kconfigwidgets, kcoreaddons, kdbusaddons,
   kdeclarative, kglobalaccel, kguiaddons, ki18n, kiconthemes, kio,
@@ -9,7 +9,6 @@
 
 mkDerivation {
   name = "plasma-framework";
-  meta = { maintainers = [ lib.maintainers.ttuegel ]; };
   nativeBuildInputs = [ extra-cmake-modules kdoctools ];
   buildInputs = [
     kactivities karchive kconfig kconfigwidgets kcoreaddons kdbusaddons