apparently unneeded temporary iterator variable removed (patch 1096066)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@31681 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/docview.cpp

@@ -187,17 +187,15 @@ bool wxDocument::DeleteAllViews()
 
     for ( it = m_documentViews.begin(), en = m_documentViews.end();
           it != en;
-          )
+          ++it )
     {
         wxView *view = (wxView *)*it;
         if (!view->Close())
             return false;
 
-        wxList::iterator next = it; ++next;
-
         delete view; // Deletes node implicitly
-        it = next;
     }
+
     // If we haven't yet deleted the document (for example
     // if there were no views) then delete it.
     if (manager && manager->GetDocuments().Member(this))