refactor: not needed remove_reference_t and remove_cvref_t removed

test/static/magnitude_test.cpp

@@ -83,7 +83,7 @@ static_assert(Magnitude<decltype(mag<2>)>);
 static_assert(Magnitude<mag_2_>);
 
 // is_named_magnitude
-static_assert(!is_named_magnitude<std::remove_cvref_t<decltype(mag<2>)>>);
+static_assert(!is_named_magnitude<decltype(mag<2>)>);
 static_assert(is_named_magnitude<mag_2_>);
 
 // power_v