dataset: Remove unused types and useless struct forward declaration.

These typedefs were not used anywhere in the tree.  The struct forward
declaration duplicates an identical one at the top of the header.

diff --git a/src/data/procedure.h b/src/data/procedure.h
index ad45a53720052ba9d784d6eb7b1aea27ec175f47..0b5ded14f4a0b184dd78f59bd45667aed837dbc0 100644 (file)
--- a/src/data/procedure.h
+++ b/src/data/procedure.h
@@ -47,10 +47,6 @@ bool proc_cancel_temporary_transformations (struct dataset *ds);
 \f
 /* Procedures. */
 
-struct dictionary ;
-typedef void  replace_source_callback (struct casereader *);
-typedef void  replace_dictionary_callback (struct dictionary *);
-
 typedef void transformation_change_callback_func (bool non_empty, void *aux);
 
 struct dataset * create_dataset (void);