Remove documentation of non-existent wxTextAttr::CreateFont().

This method doesn't exist (only GetFont() does), so don't document it.

Closes #13372.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@68491 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/textctrl.h

@@ -220,11 +220,6 @@ public:
     bool Apply(const wxTextAttr& style,
                const wxTextAttr* compareWith = NULL);
 
-    /**
-        Creates a font from the font attributes.
-    */
-    wxFont CreateFont() const;
-
     /**
         Copies all defined/valid properties from overlay to current object.
     */