removed multiple duplicate copies (with subtly different behaviour) of SetStringSelection(); left only one of them in wxItemContainer (and another one in wxRadioBoxBase, to be removed)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@32000 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/ctrlsub.tex

@@ -337,7 +337,7 @@ Sets the label for the given item.
 
 \membersection{wxControlWithItems::SetStringSelection}\label{wxcontrolwithitemssetstringselection}
 
-\func{void}{SetStringSelection}{\param{const wxString\& }{ string}}
+\func{bool}{SetStringSelection}{\param{const wxString\& }{ string}}
 
 Selects the item with the specified string in the control. This doesn't cause
 any command events being emitted.
@@ -346,6 +346,11 @@ any command events being emitted.
 
 \docparam{string}{The string to select.}
 
+\wxheading{Return value}
+
+\true if the specified string has been selected, \false if it wasn't found in
+the control.
+
 \wxheading{See also}
 
 \helpref{SetSelection}{wxcontrolwithitemssetselection}