massive burndown (#29894)

code/modules/projectiles/guns/misc/blastcannon.dm

@@ -4,7 +4,6 @@
 	icon_state = "empty_blastcannon"
 	var/icon_state_loaded = "loaded_blastcannon"
 	item_state = "blastcannon_empty"
-	w_class = WEIGHT_CLASS_NORMAL
 	force = 10
 	fire_sound = 'sound/weapons/blastcannon.ogg'
 	needs_permit = FALSE
@@ -99,7 +98,6 @@
 	name = "blast wave"
 	icon_state = "blastwave"
 	damage = 0
-	nodamage = FALSE
 	forcedodge = -1
 	range = 150
 	var/heavyr = 0