Fix wxDataViewCtrl compilation when wxUSE_SPINCTRL==0

Just don't define wxDataViewSpinRenderer in this case.

include/wx/dvrenderers.h

@@ -358,6 +358,8 @@ private:
     #error "unknown native wxDataViewCtrl implementation"
 #endif
 
+#if wxUSE_SPINCTRL
+
 // ----------------------------------------------------------------------------
 // wxDataViewSpinRenderer
 // ----------------------------------------------------------------------------
@@ -381,6 +383,8 @@ private:
     long    m_min,m_max;
 };
 
+#endif // wxUSE_SPINCTRL
+
 #if defined(wxHAS_GENERIC_DATAVIEWCTRL) || defined(__WXOSX_CARBON__)
 
 // ----------------------------------------------------------------------------

src/common/datavcmn.cpp

@@ -1569,6 +1569,7 @@ wxDEFINE_EVENT( wxEVT_DATAVIEW_ITEM_DROP_POSSIBLE, wxDataViewEvent );
 wxDEFINE_EVENT( wxEVT_DATAVIEW_ITEM_DROP, wxDataViewEvent );
 
 
+#if wxUSE_SPINCTRL
 
 // -------------------------------------
 // wxDataViewSpinRenderer
@@ -1638,6 +1639,8 @@ bool wxDataViewSpinRenderer::GetValue( wxVariant &value ) const
     return true;
 }
 
+#endif // wxUSE_SPINCTRL
+
 // -------------------------------------
 // wxDataViewChoiceRenderer
 // -------------------------------------