doc: remove LC_COLLATE and LC_CTYPE from SHOW command
The corresponding read-only server settings have been removed since
in PG16. See commit
b0f6c437160db6.
Author: Pierre Giraud <pierre.giraud@dalibo.com>
Discussion: https://www.postgresql.org/message-id/flat/
a75a2fb0-f4b3-4c0c-be3d-
7a62d266d760%40dalibo.com