Removes unused parameter times_fired from mob procs (#94590)

## About The Pull Request
What it says on the tin. `times_fired` is the most unused parameter in
all mob procs. I say most because there were just 2 cases where it was
used
- handling breathing
- handling heartbeat

Besides these 2 cases this parameter did nothing in every proc. Removing
it does 2 things
- Makes those procs more readable as it now has 1 less parameter that
was documented poorly and did nothing
- Makes those procs slightly faster as we are passing 1 less variable to
its parameter call stack

It can easily be substituted with `SSmobs.times_fired` which was its
original value anyways

## Changelog
🆑
code: removes an unused parameter `times_fired` from mob life procs.
Making them function slightly faster
/🆑

code/modules/mining/equipment/monster_organs/brimdust_sac.dm

@@ -35,7 +35,7 @@
 	qdel(src)
 
 // Every x seconds, if on lavaland, add one stack
-/obj/item/organ/monster_core/brimdust_sac/on_life(seconds_per_tick, times_fired)
+/obj/item/organ/monster_core/brimdust_sac/on_life(seconds_per_tick)
 	. = ..()
 	if(!COOLDOWN_FINISHED(src, brimdust_auto_apply_cooldown))
 		return

code/modules/mining/equipment/monster_organs/regenerative_core.dm

@@ -25,7 +25,7 @@
 		return
 	SSblackbox.record_feedback("nested tally", "hivelord_core", 1, list("[type]", "inert"))
 
-/obj/item/organ/monster_core/regenerative_core/on_life(seconds_per_tick, times_fired)
+/obj/item/organ/monster_core/regenerative_core/on_life(seconds_per_tick)
 	. = ..()
 	if (owner.health <= owner.crit_threshold)
 		trigger_organ_action(TRIGGER_FORCE_AVAILABLE)

code/modules/mining/equipment/monster_organs/rush_gland.dm

@@ -16,7 +16,7 @@
 	user_status = /datum/status_effect/lobster_rush
 	actions_types = list(/datum/action/cooldown/monster_core_action/adrenal_boost)
 
-/obj/item/organ/monster_core/rush_gland/on_life(seconds_per_tick, times_fired)
+/obj/item/organ/monster_core/rush_gland/on_life(seconds_per_tick)
 	. = ..()
 	if (owner.health <= HEALTH_DANGER_ZONE)
 		trigger_organ_action()