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/kcodecs.nix

@@ -1,10 +1,7 @@
-{ mkDerivation, lib, extra-cmake-modules, qtbase, qttools, gperf }:
+{ mkDerivation, extra-cmake-modules, qtbase, qttools, gperf }:
 
 mkDerivation {
   name = "kcodecs";
-  meta = {
-    maintainers = [ lib.maintainers.ttuegel ];
-  };
   nativeBuildInputs = [ extra-cmake-modules ];
   buildInputs = [ qttools gperf ];
   propagatedBuildInputs = [ qtbase ];