Remove TR1 compatibility layer.

This isn't necessary now we use C++17.

include/account.h

@@ -19,7 +19,7 @@
 
 typedef Anope::hash_map<NickAlias *> nickalias_map;
 typedef Anope::hash_map<NickCore *> nickcore_map;
-typedef TR1NS::unordered_map<uint64_t, NickCore *> nickcoreid_map;
+typedef std::unordered_map<uint64_t, NickCore *> nickcoreid_map;
 
 extern CoreExport Serialize::Checker<nickalias_map> NickAliasList;
 extern CoreExport Serialize::Checker<nickcore_map> NickCoreList;

include/anope.h

@@ -312,7 +312,7 @@ namespace Anope
 	{
 		inline size_t operator()(const string &s) const
 		{
-			return TR1NS::hash<std::string>()(s.lower().str());
+			return std::hash<std::string>()(s.lower().str());
 		}
 	};
 
@@ -320,7 +320,7 @@ namespace Anope
 	{
 		inline size_t operator()(const string &s) const
 		{
-			return TR1NS::hash<std::string>()(s.str());
+			return std::hash<std::string>()(s.str());
 		}
 	};
 
@@ -334,7 +334,7 @@ namespace Anope
 
 	template<typename T> class map : public std::map<string, T, ci::less> { };
 	template<typename T> class multimap : public std::multimap<string, T, ci::less> { };
-	template<typename T> class hash_map : public TR1NS::unordered_map<string, T, hash_ci, compare> { };
+	template<typename T> class hash_map : public std::unordered_map<string, T, hash_ci, compare> { };
 
 #ifndef REPRODUCIBLE_BUILD
 	static const char *const compiled = __TIME__ " " __DATE__;

include/hashcomp.h

@@ -10,14 +10,7 @@
 
 #include <string>
 #include <locale>
-
-#if defined _LIBCPP_VERSION || defined _WIN32
 #include <unordered_map>
-#define TR1NS std
-#else
-#include <tr1/unordered_map>
-#define TR1NS std::tr1
-#endif
 
 #include "services.h"
 

include/modules/os_session.h

@@ -34,7 +34,7 @@ struct Exception : Serializable
 class SessionService : public Service
 {
  public:
-	typedef TR1NS::unordered_map<cidr, Session *, cidr::hash> SessionMap;
+	typedef std::unordered_map<cidr, Session *, cidr::hash> SessionMap;
 	typedef std::vector<Exception *> ExceptionVector;
 
 	SessionService(Module *m) : Service(m, "SessionService", "session") { }

modules/m_dns.cpp

@@ -649,7 +649,7 @@ class MyManager : public Manager, public Timer
 {
 	uint32_t serial;
 
-	typedef TR1NS::unordered_map<Question, Query, Question::hash> cache_map;
+	typedef std::unordered_map<Question, Query, Question::hash> cache_map;
 	cache_map cache;
 
 	TCPSocket *tcpsock = nullptr;