Core/DB Layer: Fix a memory leak. Author: raczman (yes, you read correctly)

src/server/shared/Database/PreparedStatement.cpp

@@ -201,6 +201,8 @@ m_bind(NULL)
 MySQLPreparedStatement::~MySQLPreparedStatement()
 {
     ClearParameters();
+    delete[] m_Mstmt->bind->length;
+    delete[] m_Mstmt->bind->is_null;
     mysql_stmt_close(m_Mstmt);
     delete[] m_bind;
 }