Removed uninstallers and reinstallers

These are seldom used and native support via Homebrew, for example, is
better than what these scripts can do. This also reduces additional
maintenance burden on this project.

lib/options.sh

@@ -64,14 +64,6 @@ process_option() {
       verify_rust_crates;;
     'C')
       caffeinate_machine;;
-    'ua')
-      uninstall_application;;
-    'ux')
-      uninstall_extension;;
-    'ra')
-      reinstall_application;;
-    'rx')
-      reinstall_extension;;
     'w')
       clean_work_path;;
     'q');;