postgres_fdw.h: don't pull in rel.h when relcache.h is enough

contrib/postgres_fdw/deparse.c

@@ -50,6 +50,7 @@
 #include "parser/parsetree.h"
 #include "utils/builtins.h"
 #include "utils/lsyscache.h"
+#include "utils/rel.h"
 #include "utils/syscache.h"
 
 

contrib/postgres_fdw/postgres_fdw.c

@@ -36,6 +36,7 @@
 #include "utils/guc.h"
 #include "utils/lsyscache.h"
 #include "utils/memutils.h"
+#include "utils/rel.h"
 
 PG_MODULE_MAGIC;
 

contrib/postgres_fdw/postgres_fdw.h

@@ -16,7 +16,7 @@
 #include "foreign/foreign.h"
 #include "lib/stringinfo.h"
 #include "nodes/relation.h"
-#include "utils/rel.h"
+#include "utils/relcache.h"
 
 #include "libpq-fe.h"