cmake: remove obsolete check (#1002)

CMakeLists.txt

@@ -665,11 +665,6 @@ if (BUILD_TESTING)
       -Wno-deprecated)
   endif (HAVE_NO_DEPRECATED)
 
-  if (HAVE_EXT_SLIST)
-    target_compile_definitions (stl_logging_unittest PRIVATE
-      GLOG_STL_LOGGING_FOR_EXT_SLIST)
-  endif (HAVE_EXT_SLIST)
-
   if (HAVE_SYMBOLIZE)
     add_executable (symbolize_unittest
       src/symbolize_unittest.cc

src/glog/stl_logging.h.in

@@ -1,4 +1,4 @@
-// Copyright (c) 2003, Google Inc.
+// Copyright (c) 2023, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -35,14 +35,6 @@
 // vector<int> v1, v2;
 // CHECK_EQ(v1, v2);
 //
-// If you want to use this header file with hash maps or slist, you
-// need to define macros before including this file:
-//
-// - GLOG_STL_LOGGING_FOR_UNORDERED     - <unordered_map> and <unordered_set>
-// - GLOG_STL_LOGGING_FOR_TR1_UNORDERED - <tr1/unordered_(map|set)>
-// - GLOG_STL_LOGGING_FOR_EXT_HASH      - <ext/hash_(map|set)>
-// - GLOG_STL_LOGGING_FOR_EXT_SLIST     - <ext/slist>
-//
 
 #ifndef UTIL_GTL_STL_LOGGING_INL_H_
 #define UTIL_GTL_STL_LOGGING_INL_H_
@@ -117,10 +109,8 @@ inline std::ostream& operator<<(std::ostream& out, \
   return out; \
 }
 
-#if defined(GLOG_STL_LOGGING_FOR_UNORDERED) && __cplusplus >= 201103L
                         OUTPUT_FIVE_ARG_CONTAINER(std::unordered_map)
                             OUTPUT_FIVE_ARG_CONTAINER(std::unordered_multimap)
-#endif
 
 #undef OUTPUT_FIVE_ARG_CONTAINER