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/extra-cmake-modules/default.nix

@@ -17,6 +17,5 @@ mkDerivation {
     platforms = platforms.linux ++ platforms.darwin;
     homepage = "http://www.kde.org";
     license = licenses.bsd2;
-    maintainers = [ maintainers.ttuegel ];
   };
 }