pgsql: doc: remove mention of the DMOZ catalog in ltree docs

doc: remove mention of the DMOZ catalog in ltree docs

Discussion: /messages/by-id/CAF4Au4xYem_W3KOuxcKct7=G4j8Z3uO9j3DUKTFJqUsfp_9pQg@mail.gmail.com

Author: Oleg Bartunov

Backpatch-through: 9.3

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/c39e903d510064e4415bbadb43e34f6998351cca

Modified Files
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doc/src/sgml/ltree.sgml | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)