pgsql: Doc: remove misleading claim in documentation of PQreset().

Doc: remove misleading claim in documentation of PQreset().

This text claimed that the reconnection would occur "to the same
server", but there is no such guarantee in the code, nor would
insisting on that be an improvement.

Back-patch to v10 where multi-host connection strings were added.

Discussion: https://postgr.es/m/1095901.1611268376@sss.pgh.pa.us

Branch
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REL_13_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/35a7eef08a98597417647ee7b6c1292f911d2b82

Modified Files
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doc/src/sgml/libpq.sgml | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)