sysutils/tracker-miners: drop unused Meson options after 951c1f5d1c73

meson.build:1:0: ERROR: Unknown options: "charset_detenction, stemmer, unicode_support"

https://gitlab.gnome.org/GNOME/tracker-miners/-/commit/bce1ed6ff742
https://gitlab.gnome.org/GNOME/tracker-miners/-/commit/277b2a868de1

PR: 259080
Reported by: antoine (via exp-run)
Regressed by: https://github.com/mesonbuild/meson/commit/dbf2ace6ca1c