python3Packages.jax: remove outdated longDescription

Author: stephen-huan

pkgs/development/python-modules/jax/default.nix

@@ -194,10 +194,6 @@ buildPythonPackage rec {
 
   meta = {
     description = "Source-built JAX frontend: differentiate, compile, and transform Numpy code";
-    longDescription = ''
-      This is the JAX frontend package, it's meant to be used together with one of the jaxlib implementations,
-      e.g. `python3Packages.jaxlib`, `python3Packages.jaxlib-bin`, or `python3Packages.jaxlibWithCuda`.
-    '';
     homepage = "https://github.com/google/jax";
     license = lib.licenses.asl20;
     maintainers = with lib.maintainers; [ samuela ];