chore: Remove unused std and boost headers

unit_tests/util/indexed_data.cpp

@@ -5,8 +5,6 @@
 #include <boost/test/unit_test.hpp>
 
 #include <iomanip>
-#include <iostream>
-#include <sstream>
 #include <typeinfo>
 #include <vector>
 

unit_tests/util/io.cpp

@@ -7,7 +7,6 @@
 
 #include <boost/test/unit_test.hpp>
 
-#include <exception>
 #include <numeric>
 #include <string>
 

unit_tests/util/json_render.cpp

@@ -3,8 +3,6 @@
 
 #include <boost/test/unit_test.hpp>
 
-#include <iostream>
-
 BOOST_AUTO_TEST_SUITE(json_renderer)
 
 using namespace osrm::util::json;

unit_tests/util/permutation.cpp

@@ -6,7 +6,6 @@
 
 #include <algorithm>
 #include <numeric>
-#include <random>
 
 BOOST_AUTO_TEST_SUITE(permutation_test)
 

unit_tests/util/static_rtree.cpp

@@ -17,7 +17,6 @@
 #include <cstdint>
 
 #include <algorithm>
-#include <memory>
 #include <random>
 #include <string>
 #include <unordered_set>

unit_tests/util/viewport.cpp

@@ -4,8 +4,6 @@ using namespace osrm::util;
 
 #include <boost/test/unit_test.hpp>
 
-#include <iostream>
-
 BOOST_AUTO_TEST_SUITE(viewport_test)
 
 using namespace osrm;