sd: Kill forward declaration of non-existent RequestData

Change-Id: I0feef07e46b0056408d75abed631646e0520e4c1
Reviewed-on: https://gerrit.libreoffice.org/39306
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Takeshi Abe <tabe@fixedpoint.jp>

sd/inc/drawdoc.hxx

@@ -74,7 +74,6 @@ class Point;
 namespace vcl { class Window; }
 class SdTransferable;
 struct SpellCallbackInfo;
-struct StyleRequestData;
 class SdDrawDocument;
 class SdCustomShow;
 class SdCustomShowList;

sd/source/ui/inc/View.hxx

@@ -44,7 +44,6 @@ class Point;
 class Graphic;
 class SdrOutliner;
 class TransferableDataHelper;
-struct StyleRequestData;
 class Outliner;
 
 namespace sd {

sd/source/ui/inc/fuinsfil.hxx

@@ -24,7 +24,6 @@
 #include <vector>
 
 class SfxMedium;
-struct StyleRequestData;
 
 namespace sd {
 

sd/source/ui/inc/futext.hxx

@@ -24,7 +24,6 @@
 #include "fuconstr.hxx"
 #include <svx/svdotext.hxx>
 
-struct StyleRequestData;
 class SdrTextObj;
 class FontList;
 class OutlinerView;

sd/source/ui/slidesorter/cache/SlsRequestQueue.hxx

@@ -30,9 +30,7 @@
 
 namespace sd { namespace slidesorter { namespace cache {
 
-class RequestData;
-
-/** The request queue stores requests that are described by the RequestData
+/** The request queue stores requests that are described by the Request
     sorted according to priority class and then priority.
 */
 class RequestQueue : public sdr::PageUser