Refactors various item attack() implementations

Replaced some attack() overrides with apply_hit_effect() or other attack
procs where appropriate.
Removed the attack() override from reagent_containers.

code/game/objects/items/weapons/material/kitchen.dm

@@ -108,6 +108,7 @@
 /obj/item/weapon/material/kitchen/rollingpin/attack(mob/living/M as mob, mob/living/user as mob)
 	if ((CLUMSY in user.mutations) && prob(50))
 		user << "<span class='warning'>The [src] slips out of your hand and hits your head.</span>"
+		user.drop_from_inventory(src)
 		user.take_organ_damage(10)
 		user.Paralyse(2)
 		return

code/game/objects/items/weapons/material/material_weapons.dm

@@ -64,9 +64,7 @@
 	processing_objects -= src
 	..()
 
-/obj/item/weapon/material/attack()
-	if(!..())
-		return
+/obj/item/weapon/material/apply_hit_effect()
 	if(!unbreakable)
 		if(material.is_brittle())
 			health = 0

code/game/objects/items/weapons/material/misc.dm

@@ -44,7 +44,6 @@
 	icon = 'icons/obj/weapons.dmi'
 	icon_state = "hoe"
 	item_state = "hoe"
-	flags = CONDUCT | NOBLUDGEON
 	force_divisor = 0.25 // 5 with weight 20 (steel)
 	thrown_force_divisor = 0.25 // as above
 	w_class = 2