pgsql: Remove stray semicolon at global scope

Remove stray semicolon at global scope

The Sun Studio compiler complains about an empty declaration here.

Note for future historians: This does not mean that this compiler is
still of current interest for anyone using PostgreSQL. But we can let
this small fix be its parting gift.

Reviewed-by: Andres Freund <andres@anarazel.de>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: /messages/by-id/a0f817ee-fb86-483a-8a14-b6f7f5991b6e@eisentraut.org

Branch
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REL_17_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/591aeb5068ae580fec423bd142641585d12d9537

Modified Files
--------------
src/backend/replication/logical/slotsync.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)