remove boiler plate used for code migrations

remove boiler plate used for code migrations:

• replace Sel::Utils::invoke_or_visit with LHCb::invoke_or_visit
• remove usage of #ifdef GAUDI_FUNCTIONAL_CONSTRUCTOR_USES_TUPLE
• simplify test_thor_combiner
• remove OutputStorage alias from CombineTracksSIMD.h

Phys/FunctorCore/include/Functors/Core.h

@@ -251,9 +251,9 @@ namespace Functors {
       template <typename Mask, typename... Args>
       decltype( auto ) operator()( mask_arg_t, Mask&& mask, Args&&... args ) const {
         if constexpr ( requires_explicit_mask_v<Functor> ) {
-          return Sel::Utils::invoke_or_visit( m_prepared, std::forward<Mask>( mask ), std::forward<Args>( args )... );
+          return LHCb::invoke_or_visit( m_prepared, std::forward<Mask>( mask ), std::forward<Args>( args )... );
         } else {
-          return Sel::Utils::invoke_or_visit( m_prepared, std::forward<Args>( args )... );
+          return LHCb::invoke_or_visit( m_prepared, std::forward<Args>( args )... );
         }
       }
 
@@ -264,9 +264,9 @@ namespace Functors {
       decltype( auto ) operator()( Args&&... args ) const {
         if constexpr ( requires_explicit_mask_v<Functor> ) {
           auto const mask = loop_mask( static_cast<std::remove_reference_t<Args>&>( args )... );
-          return Sel::Utils::invoke_or_visit( m_prepared, std::move( mask ), std::forward<Args>( args )... );
+          return LHCb::invoke_or_visit( m_prepared, std::move( mask ), std::forward<Args>( args )... );
         } else {
-          return Sel::Utils::invoke_or_visit( m_prepared, std::forward<Args>( args )... );
+          return LHCb::invoke_or_visit( m_prepared, std::forward<Args>( args )... );
         }
       }
     };