fix warnings

Author: lonvia

db-copy.cpp

@@ -188,7 +188,7 @@ void db_copy_thread_t::finish_copy()
 }
 
 db_copy_mgr_t::db_copy_mgr_t(std::shared_ptr<db_copy_thread_t> const &processor)
-: m_processor(processor), m_last_line(0)
+: m_processor(processor)
 {}
 
 void db_copy_mgr_t::new_line(std::shared_ptr<db_target_descr_t> const &table)

db-copy.hpp

@@ -347,7 +347,6 @@ class db_copy_mgr_t
 
     std::shared_ptr<db_copy_thread_t> m_processor;
     std::unique_ptr<db_cmd_copy_t> m_current;
-    unsigned m_last_line;
 };
 
 #endif

middle-pgsql.cpp

@@ -770,7 +770,7 @@ void middle_pgsql_t::commit()
     }
 }
 
-void middle_pgsql_t::flush(osmium::item_type new_type)
+void middle_pgsql_t::flush(osmium::item_type)
 {
     m_db_copy.sync();
 }