Makes mirage grenade dispensers and ionic jump jets work (#85253)

## About The Pull Request

Partially handles #85207

## Changelog
🆑
fix: Mirage grenade dispensers and ionic jump jets now work
/🆑

code/modules/mod/modules/modules_general.dm

@@ -174,9 +174,6 @@
 	required_slots = list(ITEM_SLOT_BACK)
 
 /obj/item/mod/module/jump_jet/on_use()
-	. = ..()
-	if (!.)
-		return FALSE
 	if (DOING_INTERACTION(mod.wearer, mod.wearer))
 		balloon_alert(mod.wearer, "busy!")
 		return

code/modules/mod/modules/modules_security.dm

@@ -269,7 +269,7 @@
 	dispense_type = /obj/item/grenade/mirage
 
 /obj/item/mod/module/dispenser/mirage/on_use()
-	var/obj/item/grenade/mirage/grenade = .
+	var/obj/item/grenade/mirage/grenade = ..()
 	grenade.arm_grenade(mod.wearer)
 
 /obj/item/grenade/mirage