The Crystal 10 doesn't need to be mashed. The process of making it basically converts the starches to sugar in the husk before you ever get it.
The honey malt and special B would benefit from mashing. You'd still get the colors and the flavors from them without mashing, but you wouldn't get near as much sugar. But, since the quantities are so low at .5# and .25#, I doubt that it would matter much in the overall beer. You're getting your gravity from the extracts.