rm many unused fcts, detected with xunused

detected using xunused (described in Developer's corner).

App/AppOptions.cpp

@@ -69,13 +69,6 @@ ApplicationOptions::ApplicationOptions(int argc, char** argv)
     processOptions();
 }
 
-//! access variables
-
-const bpo::variable_value& ApplicationOptions::operator[](const std::string& s) const
-{
-    return m_variables_map[s];
-}
-
 bool ApplicationOptions::find(std::string name) const
 {
     return m_variables_map.count(name);
@@ -110,16 +103,6 @@ void ApplicationOptions::parseCommandLine(int argc, char** argv)
     }
 }
 
-boost::program_options::variables_map& ApplicationOptions::getVariables()
-{
-    return m_variables_map;
-}
-
-boost::program_options::options_description& ApplicationOptions::getOptions()
-{
-    return m_options;
-}
-
 void ApplicationOptions::processOptions()
 {
     if (m_variables_map.count("help")) {