1 files changed, 0 insertions, 4 deletions
diff --git a/src/lib/writer.cc b/src/lib/writer.cc
index 66239c537..8b51eb587 100644
--- a/src/lib/writer.cc
+++ b/src/lib/writer.cc
@@ -54,13 +54,9 @@
 
 using std::cout;
 using std::dynamic_pointer_cast;
-using std::list;
-using std::make_pair;
 using std::make_shared;
-using std::map;
 using std::max;
 using std::min;
-using std::pair;
 using std::shared_ptr;
 using std::string;
 using std::vector;