Clean up a few headers, remove unused headers, add headers that are used

See merge request !1706

GaudiCoreSvc/src/JobOptionsSvc/Analyzer.h

 /***********************************************************************************\
-* (c) Copyright 1998-2019 CERN for the benefit of the LHCb and ATLAS collaborations *
+* (c) Copyright 1998-2025 CERN for the benefit of the LHCb and ATLAS collaborations *
 *                                                                                   *
 * This software is distributed under the terms of the Apache version 2 licence,     *
 * copied verbatim in the file "LICENSE".                                            *
@@ -15,8 +15,7 @@
 // ============================================================================
 // STD & STL:
 // ============================================================================
-#include <string>
-#include <vector>
+#include <string_view>
 // ============================================================================
 namespace Gaudi {
   namespace Parsers {

GaudiCoreSvc/src/JobOptionsSvc/Catalog.h

 /***********************************************************************************\
-* (c) Copyright 1998-2019 CERN for the benefit of the LHCb and ATLAS collaborations *
+* (c) Copyright 1998-2025 CERN for the benefit of the LHCb and ATLAS collaborations *
 *                                                                                   *
 * This software is distributed under the terms of the Apache version 2 licence,     *
 * copied verbatim in the file "LICENSE".                                            *
@@ -15,7 +15,6 @@
 // ============================================================================
 #include <iostream>
 #include <map>
-#include <set>
 #include <string>
 #include <vector>
 // ============================================================================

GaudiCoreSvc/src/JobOptionsSvc/Grammar.h

 /***********************************************************************************\
-* (c) Copyright 1998-2019 CERN for the benefit of the LHCb and ATLAS collaborations *
+* (c) Copyright 1998-2025 CERN for the benefit of the LHCb and ATLAS collaborations *
 *                                                                                   *
 * This software is distributed under the terms of the Apache version 2 licence,     *
 * copied verbatim in the file "LICENSE".                                            *
@@ -15,9 +15,7 @@
 // ============================================================================
 // STD & STL:
 // ============================================================================
-#include <map>
 #include <string>
-#include <vector>
 // ============================================================================
 // Boost:
 // ============================================================================

GaudiCoreSvc/src/JobOptionsSvc/IncludedFiles.h

 /***********************************************************************************\
-* (c) Copyright 1998-2019 CERN for the benefit of the LHCb and ATLAS collaborations *
+* (c) Copyright 1998-2025 CERN for the benefit of the LHCb and ATLAS collaborations *
 *                                                                                   *
 * This software is distributed under the terms of the Apache version 2 licence,     *
 * copied verbatim in the file "LICENSE".                                            *
@@ -17,6 +17,7 @@
 // ============================================================================
 #include <map>
 #include <string>
+#include <string_view>
 // ============================================================================
 namespace Gaudi {
   namespace Parsers {

GaudiCoreSvc/src/JobOptionsSvc/Messages.h

 /***********************************************************************************\
-* (c) Copyright 1998-2024 CERN for the benefit of the LHCb and ATLAS collaborations *
+* (c) Copyright 1998-2025 CERN for the benefit of the LHCb and ATLAS collaborations *
 *                                                                                   *
 * This software is distributed under the terms of the Apache version 2 licence,     *
 * copied verbatim in the file "LICENSE".                                            *
@@ -13,9 +13,8 @@
 // ============================================================================
 // STD & STL
 // ============================================================================
-#include <iostream>
 #include <string>
-#include <vector>
+#include <string_view>
 // ============================================================================
 // Boost
 // ============================================================================

GaudiCoreSvc/src/JobOptionsSvc/Node.h

 /***********************************************************************************\
-* (c) Copyright 1998-2019 CERN for the benefit of the LHCb and ATLAS collaborations *
+* (c) Copyright 1998-2025 CERN for the benefit of the LHCb and ATLAS collaborations *
 *                                                                                   *
 * This software is distributed under the terms of the Apache version 2 licence,     *
 * copied verbatim in the file "LICENSE".                                            *
@@ -15,7 +15,6 @@
 // ============================================================================
 // STD & STL:
 // ============================================================================
-#include <iostream>
 #include <string>
 #include <vector>
 // ============================================================================

GaudiCoreSvc/src/JobOptionsSvc/PragmaOptions.h

 /***********************************************************************************\
-* (c) Copyright 1998-2019 CERN for the benefit of the LHCb and ATLAS collaborations *
+* (c) Copyright 1998-2025 CERN for the benefit of the LHCb and ATLAS collaborations *
 *                                                                                   *
 * This software is distributed under the terms of the Apache version 2 licence,     *
 * copied verbatim in the file "LICENSE".                                            *
@@ -16,6 +16,7 @@
 // ===========================================================================
 // STD & STL
 // ===========================================================================
+#include <string>
 // ===========================================================================
 // Boost
 // ===========================================================================

GaudiKernel/src/Lib/ParsersStandardSingle.cpp

 /***********************************************************************************\
-* (c) Copyright 1998-2023 CERN for the benefit of the LHCb and ATLAS collaborations *
+* (c) Copyright 1998-2025 CERN for the benefit of the LHCb and ATLAS collaborations *
 *                                                                                   *
 * This software is distributed under the terms of the Apache version 2 licence,     *
 * copied verbatim in the file "LICENSE".                                            *
@@ -25,10 +25,8 @@
 // ============================================================================
 // STD & STL
 // ============================================================================
-#include <map>
-#include <set>
 #include <string>
-#include <vector>
+#include <string_view>
 // ============================================================================
 // ============================================================================
 #define PARSERS_DEF_FOR_SINGLE( Type )                                                                                 \

GaudiPluginService/include/Gaudi/PluginServiceV2.h

 /***********************************************************************************\
-* (c) Copyright 2013-2022 CERN for the benefit of the LHCb and ATLAS collaborations *
+* (c) Copyright 2013-2025 CERN for the benefit of the LHCb and ATLAS collaborations *
 *                                                                                   *
 * This software is distributed under the terms of the Apache version 2 licence,     *
 * copied verbatim in the file "LICENSE".                                            *
@@ -15,14 +15,9 @@
 /// See @ref GaudiPluginService-readme
 
 #include <Gaudi/Details/PluginServiceDetailsV2.h>
-#include <cstdint>
-#include <functional>
-#include <memory>
 #include <sstream>
 #include <string>
 #include <string_view>
-#include <type_traits>
-#include <typeinfo>
 #include <utility>
 
 #if __cplusplus > 201703L && __has_include( <source_location> ) && !defined (__CLING__)