Remove superflous iostreams include from header files (#6901)

include/nodejs/node_osrm_support.hpp

@@ -24,7 +24,6 @@
 #include <boost/optional.hpp>
 
 #include <algorithm>
-#include <iostream>
 #include <iterator>
 #include <sstream>
 #include <stdexcept>

include/storage/io.hpp

@@ -18,6 +18,7 @@
 
 #include <cerrno>
 #include <cstring>
+#include <iostream>
 #include <tuple>
 #include <type_traits>
 

include/util/debug.hpp

@@ -12,7 +12,7 @@
 #include "util/typedefs.hpp"
 
 #include <iomanip>
-#include <iostream>
+#include <ostream>
 #include <sstream>
 #include <string>
 #include <vector>

include/util/exception.hpp

@@ -30,7 +30,6 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include <array>
 #include <exception>
-#include <iostream>
 #include <string>
 #include <utility>
 

include/util/exception_utils.hpp

@@ -1,6 +1,8 @@
-#ifndef SOURCE_MACROS_HPP
-#define SOURCE_MACROS_HPP
+#ifndef EXCEPTION_UTILS_HPP
+#define EXCEPTION_UTILS_HPP
+
 #include <cstring>
+#include <string>
 
 // Helper macros, don't use these ones
 // STRIP the OSRM_PROJECT_DIR from the front of a filename.  Expected to come
@@ -12,4 +14,4 @@
 // This is the macro to use
 #define SOURCE_REF (OSRM_SOURCE_FILE_ + ":" + std::to_string(__LINE__))
 
-#endif // SOURCE_MACROS_HPP
+#endif // EXCEPTION_UTILS_HPP

include/util/lua_util.hpp

@@ -10,7 +10,6 @@ extern "C"
 
 #include <boost/filesystem.hpp>
 
-#include <iostream>
 #include <string>
 
 namespace osrm::util

include/util/node_based_graph.hpp

@@ -9,7 +9,6 @@
 
 #include <tbb/parallel_sort.h>
 
-#include <iostream>
 #include <memory>
 #include <utility>