lint: Remove boost::variant and boost::optional from allowed includes

test/lint/lint-includes.sh

@@ -63,7 +63,6 @@ EXPECTED_BOOST_INCLUDES=(
     boost/iostreams/concepts.hpp
     boost/iostreams/stream.hpp
     boost/math/distributions/poisson.hpp
-    boost/optional.hpp
     boost/preprocessor/arithmetic/add.hpp
     boost/preprocessor/arithmetic/sub.hpp
     boost/preprocessor/cat.hpp
@@ -100,10 +99,6 @@ EXPECTED_BOOST_INCLUDES=(
     boost/uuid/uuid.hpp
     boost/uuid/uuid_generators.hpp
     boost/uuid/uuid_io.hpp
-    boost/variant.hpp
-    boost/variant/apply_visitor.hpp
-    boost/variant/get.hpp
-    boost/variant/static_visitor.hpp
     boost/version.hpp
 )