Removed deadwood forward declaration of Catalogue class from ArchiveFileItor...

Removed deadwood forward declaration of Catalogue class from ArchiveFileItor and DeletedArchiveFileItor

catalogue/ArchiveFileItor.hpp

@@ -28,11 +28,6 @@ namespace catalogue {
  */
 class ArchiveFileItorImpl;
 
-/**
- * Forward declaration.
- */
-class Catalogue;
-
 /**
  * A wrapper around an object that iterators over a list of archive files.
  *

catalogue/DeletedArchiveFileItor.hpp

@@ -25,8 +25,6 @@ namespace catalogue {
 
 class DeletedArchiveFileItorImpl;
 
-class Catalogue;
-  
 class DeletedArchiveFileItor {
 public: