Обсуждение: pgsql: Remove doc and code comments about ON CONFLICT deficiencies

Remove doc and code comments about ON CONFLICT deficiencies

They have been fixed, so we don't need this text anymore.  This reverts
commit 8b18ed6dfbb8.

Author: Mihail Nikalayeu <mihailnikalayeu@gmail.com>
Discussion: https://postgr.es/m/CADzfLwWo+FV9WSeOah9F1r=4haa6eay1hNvYYy_WfziJeK+aLQ@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/758479213d574d6e2fbbdfee5328edef3d60da61

Modified Files
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doc/src/sgml/ref/insert.sgml         | 9 ---------
src/backend/optimizer/util/plancat.c | 5 -----
2 files changed, 14 deletions(-)