devel/gnome-builder: drop unused Meson options after 4ea339cae9eb

meson.build:1:0: ERROR: Unknown options: "plugin_jedi"

https://gitlab.gnome.org/GNOME/gnome-builder/-/commit/53143a789db8

PR: 259080
Regressed by: https://github.com/mesonbuild/meson/commit/dbf2ace6ca1c