From 3ef680e7914733a1fd15bff784f2217424cc75b5 Mon Sep 17 00:00:00 2001
From: Mac Mason <mac@kingseye.net>
Date: Tue, 18 Jul 2017 00:01:12 -0700
Subject: [PATCH] Remove extraneous include (#407)

---
 cartographer/common/histogram.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/cartographer/common/histogram.h b/cartographer/common/histogram.h
index 4b49141..aa41141 100644
--- a/cartographer/common/histogram.h
+++ b/cartographer/common/histogram.h
@@ -17,7 +17,6 @@
 #ifndef CARTOGRAPHER_COMMON_HISTOGRAM_H_
 #define CARTOGRAPHER_COMMON_HISTOGRAM_H_
 
-#include <map>
 #include <string>
 #include <vector>