SfxDetectFilter typedef is unused

since it was added in
    commit 0d8c293f
    Date:   Wed Apr 11 20:20:32 2007 +0000
    INTEGRATION: CWS hedaburemove01 (1.1.2); FILE ADDED

Change-Id: Ie3b9ba6c4010306b26df9a142c784c00e3f1ae0e
Reviewed-on: https://gerrit.libreoffice.org/43075Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

include/sfx2/fcontnr.hxx

@@ -41,8 +41,6 @@ class SfxFilterContainer_Impl;
 class SfxFrame;
 
 
-typedef sal_uIntPtr (*SfxDetectFilter)( SfxMedium& rMedium, const SfxFilter **, SfxFilterFlags nMust, SfxFilterFlags nDont );
-
 class SFX2_DLLPUBLIC SfxFilterContainer
 {
     std::unique_ptr<SfxFilterContainer_Impl> pImpl;