From 25556871492d53a68c9f6d84f6be2cd318500632 Mon Sep 17 00:00:00 2001
From: Robert Haas <rhaas@postgresql.org>
Date: Fri, 28 Feb 2025 09:48:30 -0500
Subject: [PATCH] Avoid including explain.h in explain_format.h and
 explain_dr.h

As per a suggestion from Tom Lane, we do this by declaring "struct
ExplainState" here and refer to that rather than "ExplainState".

Also per Tom, CreateExplainSerializeDestReceiver was still defined
in explain.h in addition to explain_dr.h. Remove leftover prototype.