Reorder C includes

Reorder header files in joinrels.c and pathnode.c in alphabetical order,
removing unnecessary ones.

Author: Etsuro Fujita

src/backend/optimizer/path/joinrels.c

@@ -16,15 +16,13 @@
 
 #include "miscadmin.h"
 #include "catalog/partition.h"
-#include "nodes/relation.h"
 #include "optimizer/clauses.h"
 #include "optimizer/joininfo.h"
 #include "optimizer/pathnode.h"
 #include "optimizer/paths.h"
 #include "optimizer/prep.h"
-#include "optimizer/cost.h"
-#include "utils/memutils.h"
 #include "utils/lsyscache.h"
+#include "utils/memutils.h"
 
 
 static void make_rels_by_clause_joins(PlannerInfo *root,

src/backend/optimizer/util/pathnode.c

@@ -17,8 +17,9 @@
 #include <math.h>
 
 #include "miscadmin.h"
-#include "nodes/nodeFuncs.h"
+#include "foreign/fdwapi.h"
 #include "nodes/extensible.h"
+#include "nodes/nodeFuncs.h"
 #include "optimizer/clauses.h"
 #include "optimizer/cost.h"
 #include "optimizer/pathnode.h"
@@ -29,7 +30,6 @@
 #include "optimizer/tlist.h"
 #include "optimizer/var.h"
 #include "parser/parsetree.h"
-#include "foreign/fdwapi.h"
 #include "utils/lsyscache.h"
 #include "utils/memutils.h"
 #include "utils/selfuncs.h"