Removed duplicates includes

single_include/nlohmann/json.hpp

@@ -34,14 +34,14 @@ SOFTWARE.
 #define NLOHMANN_JSON_VERSION_MINOR 6
 #define NLOHMANN_JSON_VERSION_PATCH 1
 
-#include <algorithm> // all_of, find, for_each
+#include <algorithm> // all_of, find, for_each, transform
 #include <cassert> // assert
 #include <ciso646> // and, not, or
 #include <cstddef> // nullptr_t, ptrdiff_t, size_t
 #include <functional> // hash, less
 #include <initializer_list> // initializer_list
 #include <iosfwd> // istream, ostream
-#include <iterator> // random_access_iterator_tag
+#include <iterator> // random_access_iterator_tag, inserter, front_inserter, end
 #include <memory> // unique_ptr
 #include <numeric> // accumulate
 #include <string> // string, stoi, to_string
@@ -49,24 +49,15 @@ SOFTWARE.
 #include <vector> // vector
 
 // #include <nlohmann/adl_serializer.hpp>
-
-
-#include <utility>
-
 // #include <nlohmann/detail/conversions/from_json.hpp>
 
 
-#include <algorithm> // transform
 #include <array> // array
-#include <ciso646> // and, not
 #include <forward_list> // forward_list
-#include <iterator> // inserter, front_inserter, end
 #include <map> // map
-#include <string> // string
 #include <tuple> // tuple, make_tuple
 #include <type_traits> // is_arithmetic, is_same, is_enum, underlying_type, is_convertible
 #include <unordered_map> // unordered_map
-#include <utility> // pair, declval
 #include <valarray> // valarray
 
 // #include <nlohmann/detail/exceptions.hpp>
@@ -74,13 +65,10 @@ SOFTWARE.
 
 #include <exception> // exception
 #include <stdexcept> // runtime_error
-#include <string> // to_string
 
 // #include <nlohmann/detail/input/position_t.hpp>
 
 
-#include <cstddef> // size_t
-
 namespace nlohmann
 {
 namespace detail