sw: fix remaining IWYU warnings in inc/*.hxx

Also check for not needed forward declarations.

Change-Id: I92759f3f40d9458fd192665b39b87a78d8b97e5a
Reviewed-on: https://gerrit.libreoffice.org/53418
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>

1 files changed, 0 insertions, 1 deletions

diff --git a/sw/inc/postithelper.hxx b/sw/inc/postithelper.hxx
index 1e20f47e9df4..d9a0f8aac3e3 100644
--- a/sw/inc/postithelper.hxx
+++ b/sw/inc/postithelper.hxx
@@ -30,7 +30,6 @@ class SwRootFrame;
 class SwPostItMgr;
 class SwEditWin;
 class SwFrame;
-class SvxLanguageItem;
 namespace sw { namespace annotation {
     class SwAnnotationWin;
 } }