sd: Do not copy SdStyleSheet

Anyway copy assignment operator has been deleted already.

Change-Id: Ie9ee9d8a9434b41b3b36d2483424776829572837
Reviewed-on: https://gerrit.libreoffice.org/38973Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Takeshi Abe <tabe@fixedpoint.jp>

sd/inc/stlsheet.hxx

@@ -54,7 +54,6 @@ class SdStyleSheet : public SdStyleSheetBase, private ::cppu::BaseMutex
 {
 public:
     SdStyleSheet( const OUString& rDisplayName, SfxStyleSheetBasePool& rPool, SfxStyleFamily eFamily, sal_uInt16 nMask );
-    SdStyleSheet( const SdStyleSheet& );
 
     virtual bool        SetParent (const OUString& rParentName) override;
     virtual SfxItemSet& GetItemSet() override;
@@ -149,6 +148,7 @@ protected:
     std::unique_ptr< ModifyListenerForewarder > mpModifyListenerForewarder;
 
 private:
+    SdStyleSheet( const SdStyleSheet& ) = delete;
     SdStyleSheet& operator=( const SdStyleSheet& ) = delete;
 };
 

sd/source/core/stlsheet.cxx

@@ -138,15 +138,6 @@ SdStyleSheet::SdStyleSheet(const OUString& rDisplayName, SfxStyleSheetBasePool&
 {
 }
 
-SdStyleSheet::SdStyleSheet( const SdStyleSheet & r )
-: SdStyleSheetBase( r )
-, ::cppu::BaseMutex()
-, msApiName( r.msApiName )
-, mxPool( r.mxPool )
-, mrBHelper( m_aMutex )
-{
-}
-
 SdStyleSheet::~SdStyleSheet()
 {
     delete pSet;