Removes now-unnecessary obj_integrity definitions

code/game/objects/structures/aliens.dm

@@ -9,7 +9,6 @@
 
 /obj/structure/alien
 	icon = 'icons/mob/alien.dmi'
-	obj_integrity = 100
 	max_integrity = 100
 
 /obj/structure/alien/run_obj_armor(damage_amount, damage_type, damage_flag = 0, attack_dir)
@@ -59,7 +58,6 @@
 	opacity = 1
 	anchored = 1
 	canSmoothWith = list(/obj/structure/alien/resin)
-	obj_integrity = 200
 	max_integrity = 200
 	smooth = SMOOTH_TRUE
 	var/resintype = null
@@ -92,7 +90,6 @@
 	icon = 'icons/obj/smooth_structures/alien/resin_membrane.dmi'
 	icon_state = "membrane0"
 	opacity = 0
-	obj_integrity = 160
 	max_integrity = 160
 	resintype = "membrane"
 	canSmoothWith = list(/obj/structure/alien/resin/wall, /obj/structure/alien/resin/membrane)
@@ -119,7 +116,6 @@
 	density = 0
 	layer = TURF_LAYER
 	icon_state = "weeds"
-	obj_integrity = 15
 	max_integrity = 15
 	canSmoothWith = list(/obj/structure/alien/weeds, /turf/closed/wall)
 	smooth = SMOOTH_MORE
@@ -220,7 +216,6 @@
 	icon_state = "egg_growing"
 	density = FALSE
 	anchored = TRUE
-	obj_integrity = 100
 	max_integrity = 100
 	integrity_failure = 5
 	var/status = GROWING	//can be GROWING, GROWN or BURST; all mutually exclusive