Fix code comment

The changes made in commit d2b4b4c2259 contained incorrect comments:
They said that certain forward declarations were necessary to "avoid
including pathnodes.h here", but the file is itself pathnodes.h!  So
change the comment to just say it's a forward declaration in one case,
and in the other case we don't need the declaration at all because it
already appeared earlier in the file.

diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h
index 5e89dbffce23a26dde7a01d465ed20c01b86005e..69d7b3d9b83b15621ecda08b81a3be4a0ef9a638 100644 (file)
--- a/src/include/nodes/pathnodes.h
+++ b/src/include/nodes/pathnodes.h
@@ -1086,8 +1086,7 @@ typedef struct IndexOptInfo IndexOptInfo;
 #define HAVE_INDEXOPTINFO_TYPEDEF 1
 #endif
 
-struct IndexPath;              /* avoid including pathnodes.h here */
-struct PlannerInfo;                /* avoid including pathnodes.h here */
+struct IndexPath;              /* forward declaration */
 
 struct IndexOptInfo
 {