[Spells] Implemented SPA 511 SE_Ff_FocusTimerMin (#1645)

* update for SPA 511

* remove debugs, AA implemented

* update

* format update

* rename function

renamed function
only check for buffs value > 0, don't need to check for AA's which are negative ID's

* var rename

update var name to better represent its function.

zone/mob_ai.cpp

@@ -1125,9 +1125,6 @@ void Mob::AI_Process() {
 
 		ProjectileAttack();
 
-		if (focus_proc_limit_timer.Check())
-			FocusProcLimitProcess();
-
 		if (shield_timer.Check()) {
 			ShieldAbilityFinish();
 		}