Replaced all remaining ACE based Singletons

Replaced ACE base AutoPtr class with shared_ptr
Note: worldserver currently broken due to MapUpdater threading failure (ACE ofc, what else could it be)

src/server/shared/Database/MySQLConnection.h

@@ -15,8 +15,6 @@
  * with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <ace/Activation_Queue.h>
-
 #include "DatabaseWorkerPool.h"
 #include "Transaction.h"
 #include "Util.h"
@@ -100,13 +98,13 @@ class MySQLConnection
         {
             /// Tries to acquire lock. If lock is acquired by another thread
             /// the calling parent will just try another connection
-            return m_Mutex.tryacquire() != -1;
+            return m_Mutex.try_lock();
         }
 
         void Unlock()
         {
             /// Called by parent databasepool. Will let other threads access this connection
-            m_Mutex.release();
+            m_Mutex.unlock();
         }
 
         MYSQL* GetHandle()  { return m_Mysql; }
@@ -131,7 +129,7 @@ class MySQLConnection
         MYSQL *               m_Mysql;                      //! MySQL Handle.
         MySQLConnectionInfo&  m_connectionInfo;             //! Connection info (used for logging)
         ConnectionFlags       m_connectionFlags;            //! Connection flags (for preparing relevant statements)
-        ACE_Thread_Mutex      m_Mutex;
+        std::mutex            m_Mutex;
 
         MySQLConnection(MySQLConnection const& right) = delete;
         MySQLConnection& operator=(MySQLConnection const& right) = delete;