kde5.frameworks: remove version from directory name

Now that we keep only one version of Frameworks in Nixpkgs, it is not
necessary to version the directory which stores the Nix expressions.

pkgs/desktops/kde-5/frameworks/default.nix

@@ -7,7 +7,7 @@ keep the old version around for a short time after major updates.)
 
 1. Update the URL in `maintainers/scripts/generate-kde-frameworks.sh`.
 2. From the top of the Nixpkgs tree, run
-   `./maintainers/scripts/generate-kde-frameworks.sh > pkgs/desktops/kde-5/frameworks-$VERSION/srcs.nix'.
+   `./maintainers/scripts/generate-kde-frameworks.sh > pkgs/desktops/kde-5/frameworks/srcs.nix'.
 3. Check that the new packages build correctly.
 4. Commit the changes and open a pull request.