Make organization info available in admin instance without FF

the organisation information is available in gon instance when the FF ui_for_organizations is enabled

https://gitlab.com/gitlab-org/gitlab/-/blob/1b2caa23b55eee464728a4f7491958bc2e37ae7f/lib/gitlab/gon_helper.rb#L68-70

We should be removing that check to make the organization id available always to get the work item types in admin instance

If we always take the default id , we will need to make changes later when organizations can be switched

Edited by Deepika Guliani