Remove wxDataViewTextRendererAttr by merging it with wxDataViewTextRenderer.

There is no reason to have a separate class for rendering the text honouring
the attributes defined for it, wxDataViewTextRenderer itself already does this
perfectly well.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62383 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/dataview.h

@@ -1033,7 +1033,6 @@ enum wxDataViewCellRenderState
     One instance of a renderer class is owned by a wxDataViewColumn.
     There is a number of ready-to-use renderers provided:
     - wxDataViewTextRenderer,
-    - wxDataViewTextRendererAttr,
     - wxDataViewIconTextRenderer,
     - wxDataViewToggleRenderer,
     - wxDataViewProgressRenderer,
@@ -1263,30 +1262,6 @@ public:
 
 
 
-/**
-    @class wxDataViewTextRendererAttr
-
-    The same as wxDataViewTextRenderer but with support for font attributes.
-    Font attributes are currently only supported under GTK+ and MSW.
-
-    @see wxDataViewModel::GetAttr and wxDataViewItemAttr.
-
-    @library{wxadv}
-    @category{dvc}
-*/
-class wxDataViewTextRendererAttr : public wxDataViewTextRenderer
-{
-public:
-    /**
-        The ctor.
-    */
-    wxDataViewTextRendererAttr(const wxString& varianttype = "string",
-                               wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
-                               int align = wxDVR_DEFAULT_ALIGNMENT);
-};
-
-
-
 /**
     @class wxDataViewCustomRenderer