gnumeric: unmark as broken on darwin (#357140)

pkgs/by-name/gn/gnumeric/package.nix

@@ -38,7 +38,6 @@ in stdenv.mkDerivation rec {
     license = lib.licenses.gpl2Plus;
     homepage = "http://projects.gnome.org/gnumeric/";
     platforms = platforms.unix;
-    broken = with stdenv; isDarwin && isAarch64;
     maintainers = [ maintainers.vcunat ];
   };
 }

pkgs/tools/misc/diffoscope/default.nix

@@ -215,6 +215,7 @@ python.pkgs.buildPythonApplication rec {
         ghc
         ghostscriptX
         giflib
+        gnumeric
         gnupg
         hdf5
         imagemagick
@@ -246,8 +247,6 @@ python.pkgs.buildPythonApplication rec {
       ])
       # oggvideotools is broken on Darwin, please put it back when it will be fixed?
       ++ lib.optionals stdenv.hostPlatform.isLinux [ oggvideotools ]
-      # This doesn't work on aarch64-darwin
-      ++ lib.optionals (stdenv.hostPlatform.system != "aarch64-darwin") [ gnumeric ]
     )
   );