Fix warning

Author: asfernandes

src/jrd/extds/ExtDS.cpp

@@ -867,8 +867,7 @@ bool Connection::getWrapErrors(const ISC_STATUS* status) noexcept
 /// ConnectionsPool
 
 ConnectionsPool::ConnectionsPool(MemoryPool& pool)
-	: m_pool(pool),
-	  m_idleArray(pool),
+	: m_idleArray(pool),
 	  m_idleList(NULL),
 	  m_activeList(NULL),
 	  m_allCount(0),

src/jrd/extds/ExtDS.h

@@ -468,7 +468,6 @@ class ConnectionsPool
 	typedef Firebird::SortedArray<Data*, Firebird::EmptyStorage<Data*>, Data, Data, Data>
 		IdleArray;
 
-	Firebird::MemoryPool& m_pool;
 	Firebird::Mutex m_mutex;
 	IdleArray m_idleArray;
 	Data* m_idleList;