Re-enables --incompatible_config_setting_private_default_visibility…

… for `--config incompatible` builds.

Refs #48.

Since `@aspect_rules_js` has been updated to include aspect-build/rules_js#301, we can now re-enable this flag.

tools/bazelrc/incompatible.bazelrc

@@ -10,11 +10,7 @@
 
 build:incompatible --incompatible_always_check_depset_elements
 build:incompatible --incompatible_avoid_conflict_dlls
-
-# TODO: Re-enable when fixed in `@aspect_rules_js`.
-# https://github.com/aspect-build/rules_js/pull/301
-# build:incompatible --incompatible_config_setting_private_default_visibility
-
+build:incompatible --incompatible_config_setting_private_default_visibility
 build:incompatible --incompatible_default_to_explicit_init_py
 build:incompatible --incompatible_depset_for_libraries_to_link_getter
 build:incompatible --incompatible_disable_expand_if_all_available_in_flag_set