svtools: remove unused GraphicObject::GetReleaseFromCache

svtools/inc/svtools/grfmgr.hxx

@@ -346,9 +346,6 @@ protected:
     virtual void            GraphicManagerDestroyed();
     virtual SvStream*       GetSwapStream() const;
 
-    // !!! to be removed
-    virtual sal_uLong       GetReleaseFromCache() const;
-
     virtual void            Load( SvStream& );
     virtual void            Save( SvStream& );
     virtual void            Assign( const SvDataCopyStream& );

svtools/source/graphic/grfmgr.cxx

@@ -393,12 +393,6 @@ SvStream* GraphicObject::GetSwapStream() const
     return( HasSwapStreamHdl() ? (SvStream*) mpSwapStreamHdl->Call( (void*) this ) : GRFMGR_AUTOSWAPSTREAM_NONE );
 }
 
-// !!! to be removed
-sal_uLong GraphicObject::GetReleaseFromCache() const
-{
-    return 0;
-}
-
 void GraphicObject::SetAttr( const GraphicAttr& rAttr )
 {
     maAttr = rAttr;